<PAGE>   1


                                 PROMISSORY NOTE

Borrower:  Stearns and Lehman, Inc.           Lender:  First-Knox National Bank
           (TIN: 34-1579817)                           Lexington Branch
           52 Surrey Road                              10 Plymouth Street
           Mansfield, OH 44901                         Lexington, OH 44904

Principal Amount:         Initial Rate:       Date of Note: 
  $750,000.00                9.000%           December 2, 1996 

PROMISE TO PAY. Stearns and Lehman, inc. ("Borrower") promises to pay to
First-Knox National Bank ("Lender"), or order, in lawful money of the United
States of America, the principal amount of Seven Hundred Fifty Thousand & 00/100
Dollars ($750,000.00) or so much as may be outstanding, together with interest
on the unpaid outstanding principal balance of each advance. interest shall be
calculated from the date of each advance until repayment of each advance.

PAYMENT. Borrower will pay this loan in accordance with the following payment
schedule:

7 consecutive monthly interest payments, beginning January 2, 1997, with
interest calculated on the unpaid principal balances at an interest rate of
0.750 percentage points over the index described below; and 120 consecutive
monthly principal and interest payments in the initial amount of $9,500.68 each,
beginning August 2,1997, with interest calculated on the unpaid principal
balances at an interest rate of 0.750 percentage points over the index described
below. Borrower's final payment of $9,500.68 will be due on July 2, 2007. This
estimated final payment is based on the assumption that all payments will be
made exactly as scheduled and that the index does not change; the actual final
payment will be for all principal and accrued interest not yet paid, together
with any other unpaid amounts under this Note.

Interest on this Note is computed on a 30/360 simple interest basis; that is,
with the exception of odd days in the first payment period, monthly interest is
calculated by applying the ratio of the annual interest rate over a year of 360
days, multiplied by the outstanding principal balance, multiplied by a month of
30 days. Interest for the odd days is calculated on the basis of the actual days
to the next full month and a 360-day year. Borrower will pay Lender at Lender's
address shown above or at such other place as Lender may designate in writing.
Unless otherwise agreed or required by applicable law, payments will be applied
first to any unpaid collection costs and any late charges, then to any unpaid
interest, and any remaining amount to principal.

VARIABLE INTEREST RATE. The interest rate on this Note is subject to change from
time to time based on changes in an independent index which is the WALL STREET
JOURNAL PRIME (the "Index"). The Index is not necessarily the lowest rate
charged by Lender on its loans. If the Index becomes unavailable during the term
of this loan, Lender may designate a substitute index after notice to Borrower.
Lender will tell Borrower the current Index rate upon Borrower's request.
Borrower understands that Lender may make loans based on other rates as well.
The interest rate change will not occur more often than each YEAR. The index
currently is 8.250% per annum. The interest rate or rates to be applied to the
unpaid principal balance of this Note

                           Exhibit 10(c), Page 1 of 13


<PAGE>   2



will be the rate or rates set forth above in the "Payment" section. NOTICE:
Under no circumstances will the interest rate on this Note be more than the
maximum rate allowed by applicable law. Whenever increases occur in the interest
rate, Lender, at its option, may do one or more of the following: (a) increase
Borrower's payments to ensure Borrower's loan will pay off by its original final
maturity date, (b) increase Borrower's payments to cover accruing interest, (C)
increase the number of Borrower's payments, and (d) continue Borrower's payments
at the same amount and increase Borrower's final payment.

PREPAYMENT. Borrower agrees that all loan fees and other prepaid finance charges
are earned fully as of the date of the loan and will not be subject to refund
upon early payment (whether voluntary or as a result of default), except as
otherwise required by law. Except for the foregoing, Borrower may pay without
penalty all or a portion of the amount owed earlier than it is due. Early
payments will not, unless agreed to by Lender in writing, relieve Borrower of
Borrower's obligation to continue to make payments under the payment schedule.
Rather, they will reduce the principal balance due and may result in Borrower
making fewer payments.

LATE CHARGE. If a payment is 15 days or more late, Borrower will be charged
5.000% of the unpaid portion of the regularly scheduled payment or $50.00,
whichever is greater.

DEFAULT. Borrower will be in default if any of the following happens: (a)
Borrower fails to make any payment when due. (b) Borrower breaks any promise
Borrower has made to Lender, or Borrower fails to comply with or to perform when
due any other term, obligation, covenant, or condition contained in this Note or
any agreement related to this Note, or in any other agreement or loan Borrower
has with Lender. (C) Borrower defaults under any loan, extension of credit,
security agreement, purchase or sales agreement, or any other agreement, in
favor of any other creditor or person that may materially affect any of
Borrower's property or Borrower's ability to repay this Note or perform
Borrower's obligations under this Note or any of the Related Documents. (d) Any
representation or statement made or furnished to Lender by Borrower or on
Borrower's behalf is false or misleading In any material respect either now or
at the time made or furnished. (e) Borrower becomes insolvent, a receiver is
appointed for any part of Borrowers property, Borrower makes an assignment for
the benefit of creditors, or any proceeding is commenced either by Borrower or
against Borrower under any bankruptcy or insolvency laws. (f) Any creditor tries
to take any of Borrower's property on or in which Lender has a lien or security
interest. This includes a garnishment of any of Borrower's accounts with Lender.
(g) Any guarantor dies or any of the other events described in this default
section occurs with respect to any guarantor of this Note. (h) A material
adverse change occurs in Borrower's financial condition, or Lender believes the
prospect of payment or performance of the Indebtedness is impaired. (I) Lender
in good faith deems itself insecure.

If any default, other than a default in payment, is curable and if Borrower has
not been given a notice of a breach of the same provision of this Note within
the preceding twelve (12) months, it may be cured (and no event of default will
have occurred) if Borrower, after receiving written notice from Lender demanding
cure of such default: (a) cures the default within fifteen (15) days; or (b) if
the cure requires more than fifteen (15) days, immediately initiates steps which
Lender deems in Lender's sole discretion to be sufficient to cure the default
and thereafter continues and

                           Exhibit 10(c), Page 2 of 13


<PAGE>   3



completes all reasonable and necessary steps sufficient to produce compliance as
soon as reasonably practical.

LENDER'S RIGHTS. Upon default, Lender may declare the entire unpaid principal
balance on this Note and all accrued unpaid interest immediately due, without
notice, and then Borrower will pay that amount. Upon default, including failure
to pay upon final maturity, Lender, at its option, may also, if permitted under
applicable law, increase the variable interest rate on this Note by 2.000
percentage points. The interest rate will not exceed the maximum rate permitted
by applicable law. Lender may hire or pay someone else to help collect this Note
if Borrower does not pay. Borrower also will pay Lender that amount. This
includes, subject to any limits under applicable law, Lender's attorneys' fees
and Lender's legal expenses whether or not there is a lawsuit, including
attorneys' fees and legal expenses for bankruptcy proceedings (including efforts
to modify or vacate any automatic stay or injunction), appeals, and any
anticipated post-judgment collection services. If not prohibited by applicable
law, Borrower also will pay any court costs, in addition to all other sums
provided by law. This Note has been delivered to Lender and accepted by Lender
in the State of Ohio. if there is a lawsuit, Borrower agrees upon Lender's
request to submit to the jurisdiction of the courts of Richland County, the
State of Ohio. This Note shall be governed by and construed in accordance with
the laws of the State of Ohio.

CONFESSION OF JUDGMENT. Borrower hereby irrevocably authorizes and empowers any
attorney-at-law, including an attorney hired by Lender, to appear in any court
of record and to confess judgment against Borrower for the unpaid amount of this
Note as evidenced by an affidavit signed by an officer of Lender setting forth
the amount then due, plus attorneys' fees as provided in this Note, plus costs
of suit, and to release all errors, and waive all RIGHTS of appeal. if a copy of
this Note, verified by an affidavit, shall have been filed in the proceeding, it
will not be necessary to file the original as a warrant of attorney. Borrower
waives the right to any stay of execution and the benefit of all exemption laws
now or hereafter in effect. No single exercise of the foregoing warrant and
power to confess judgment will be deemed to exhaust the power, whether or not
any such exercise shall be held by any court to be invalid, voidable, or void;
but the power will continue undiminished and may be exercised from time to time
as Lender may elect until all amounts owing on this Note have been paid in full.
Borrower waives any conflict of interest that an attorney hired by Lender may
have in acting on behalf of Borrower in confessing judgment against Borrower
while such attorney is retained by Lender. Borrower expressly consents to such
attorney acting for Borrower in confessing judgment.

RIGHT OF SETOFF. Borrower grants to Lender a contractual possessory security
interest in, and hereby assigns, conveys, delivers, pledges, and transfers to
Lender all Borrower's right, title and interest in and to, Borrower's accounts
with Lender (whether checking, savings, or some other account), including
without limitation all accounts held jointly with someone else and all accounts
Borrower may open in the future, excluding however all IRA and Keogh accounts,
and all trust accounts for which the grant of a security interest would be
prohibited by law. Borrower authorizes Lender, to the extent permitted by
applicable law, to charge or setoff all sums owing on this Note against any and
all such accounts.

COLLATERAL. This Note is secured by a first mortgage on real estate located in
the Township

                           Exhibit 10(c), Page 3 of 13


<PAGE>   4



of Mansfield, County of Richland, and State of Ohio, as further described in
mortgage of even date. A second position on all equipment and inventory now
owned or hereafter acquired, and all accounts receivable now existing or
hereafter arising.

LINE OF CREDIT. This Note evidences a straight line of credit. Once the total
amount of principal has been advanced, Borrower is not entitled to further loan
advances. Advances under this Note, as well as directions for payment from
Borrower's accounts, may be requested orally or in writing by Borrower or by an
authorized person. Lender may, but need not, require that all oral requests be
confirmed in writing. Borrower agrees to be liable for all sums either: (a)
advanced in accordance with the instructions of an authorized person or (b)
credited to any of Borrower's accounts with Lender. The unpaid principal balance
owing on this Note at any time may be evidenced by endorsements on this Note or
by Lender's internal records, including daily computer print-outs. Lender will
have no obligation to advance funds under this Note if: (a) Borrower or any
guarantor is in default under the terms of this Note or any agreement that
Borrower or any guarantor has with Lender, including any agreement made in
connection with the signing of this Note; (b) Borrower or any guarantor ceases
doing business or is insolvent; (C) any guarantor seeks, claims or otherwise
attempts to limit, modify or revoke such guarantor's guarantee of this Note or
any other loan with Lender; (d) Borrower has applied funds provided pursuant to
this Note for purposes other than those authorized by Lender; or (e) Lender in
good faith deems itself insecure under this Note or any other agreement between
Lender and Borrower.

GENERAL PROVISIONS. If any part of this Note cannot be enforced, this fact will
not affect the rest of the Note. In particular, this section means (among other
things) that Borrower does not agree or intend to pay, and Lender does not agree
or intend to contract for, charge, collect, take, reserve or receive
(collectively referred to herein as "charge or collect"), any amount in the
nature of interest or in the nature of a fee for this loan, which would in any
way or event (including demand, prepayment, or acceleration) cause Lender to
charge or collect more for this loan than the maximum Lender would be permitted
to charge or collect by federal law or the law of the State of Ohio (as
applicable). Any such excess interest or unauthorized fee shall, instead of
anything stated to the contrary, be applied first to reduce the principal
balance of this loan, and when the principal has been paid in full, be refunded
to Borrower. Lender may delay or forgo enforcing any of its rights or remedies
under this Note without losing them. Borrower and any other person who signs,
guarantees or endorses this Note, to the extent allowed by law, waive
presentment, demand for payment, protest and notice of dishonor. Upon any change
in the terms of this Note, and unless otherwise expressly stated in writing, no
party who signs this Note, whether as maker, guarantor, accommodation maker or
endorser, shall be released from liability. All such parties agree that Lender
may renew or extend (repeatedly and for any length of time) this loan, or
release any party or guarantor or collateral; or impair, fail to realize upon or
perfect Lender's security interest in the collateral; and take any other action
deemed necessary by Lender without the consent of or notice to anyone. All such
parties also agree that Lender may modify this loan without the consent of or
notice to anyone other than the party with whom the modification is made.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE
PROVISIONS OF THIS NOTE.  BORROWER AGREES TO THE TERMS OF THE NOTE

                           Exhibit 10(c), Page 4 of 13


<PAGE>   5



AND ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THE NOTE.

NOTICE: FOR THIS NOTICE "YOU" MEANS THE BORROWER AND "HIS" MEANS LENDER.

WARNING - BY SIGNING THIS PAPER YOU GIVE UP YOUR RIGHT TO NOTICE AND COURT
TRIAL. IF YOU DO NOT PAY ON TIME A COURT JUDGMENT MAY BE TAKEN AGAINST YOU
WITHOUT YOUR PRIOR KNOWLEDGE AND THE POWERS OF A COURT CAN BE USED TO COLLECT
FROM YOU REGARDLESS OF ANY CLAIMS YOU MAY HAVE AGAINST THE CREDITOR WHETHER FOR
RETURNED GOODS FAULTY GOODS FAILURE ON HIS PART TO COMPLY WITH THE AGREEMENT, OR
ANY OTHER CAUSE.

BORROWER:
Stearns and Lehman, Inc.

By:  /s/ William Stearns, President           By:  /s/ Sally Stearns, Secretary



                           Exhibit 10(c), Page 5 of 13


<PAGE>   6



                             BUSINESS LOAN AGREEMENT

Borrower:  Stearns and Lehman, Inc.           Lender:  First-Knox National Bank
           (TIN: 34-1579817)                           Lexington Branch
           52 Surrey Road                              10 Plymouth Street
           Mansfield, OH 44901                         Lexington, OH 44904

Principal Amount:         Initial Rate:       Date of Note: 
  $750,000.00               9.000%            December 2, 1996   

THIS BUSINESS LOAN AGREEMENT between Stearns and Lehman, Inc. ("Borrower") and
First-Knox National Bank ("Lender") is made and executed on the following terms
and conditions. Borrower has received prior commercial loans from Lender or has
applied to Lender for a commercial loan or loans and other financial
accommodations, including those which may be described on any exhibit or
schedule attached to this Agreement. All such loans and financial
accommodations, together with all future loans and financial accommodations from
Lender to Borrower, are referred to in this Agreement individually as the "Loan"
and collectively as the "Loans." Borrower understands and agrees that: (a) in
granting, renewing, or extending any Loan, Lender is relying upon Borrower's
representations, warranties, and agreements, as set forth in this Agreement; (b)
the granting, renewing, or extending of any Loan by Lender at all times shall be
subject to Lender's sole judgment and discretion; and (c) all such Loans shall
be and shall remain subject to the following terms and conditions of this
Agreement.

TERM. This Agreement shall be effective as of December 2, 1996, and shall
continue thereafter until all Indebtedness of Borrower to Lender has been
performed in full and the parties terminate this Agreement in writing.

CONDITIONS PRECEDENT TO EACH ADVANCE. Lender's obligation to make the initial
Loan Advance and each subsequent Loan Advance under this Agreement shall be
subject to the fulfillment to Lender's satisfaction of all of the conditions set
forth in this Agreement and in the Related Documents.

Loan Documents. Borrower shall provide to Lender in form satisfactory to Lender
the following documents for the Loan: (a) the Note, (b) Security Agreements
granting to Lender security interests in the Collateral, (c) Financing
Statements perfecting Lender's Security Interests; (d) evidence of insurance as
required below; and (e) any other documents required under this Agreement or by
Lender or its counsel, including without limitation any assignments of life
insurance described below.

Borrower's Authorization. Borrower shall have provided in form and substance
satisfactory to Lender properly certified resolutions, duly authorizing the
execution and delivery of this Agreement, the Note and the Related Documents,
and such other authorizations and other documents and instruments as Lender or
its counsel, in their sole discretion, may require. Payment of Fees and
Expenses. Borrower shall have paid to Lender all fees, charges, and other
expenses which are then due and payable as specified in this Agreement or any
Related Document.

                           Exhibit 10(c), Page 6 of 13


<PAGE>   7



Representations and Warranties. The representations and warranties set forth in
this Agreement, in the Related Documents, and In any document or certificate
delivered to Lender under this Agreement are true and correct.

No Event of Default. There shall not exist at the time of any advance a
condition which would constitute an Event of Default under this Agreement.

REPRESENTATIONS AND WARRANTIES. Borrower represents and warrants to Lender, as
of the date of this Agreement, as of the date of each disbursement of Loan
proceeds, as of the date of any renewal, extension or modification of any Loan,
and at all times any Indebtedness exists:

organization. Borrower is a corporation which is duly organized, validly
existing, and in good standing under the laws of the state of Borrower's
incorporation and is validly existing and in good standing in all states in
which Borrower is doing business. Borrower has the full power and authority to
own its properties and to transact the businesses in which it is presently
engaged or presently proposes to engage. Borrower also is duly qualified as a
foreign corporation and is in good standing in all states in which the failure
to so qualify would have a material adverse effect on its businesses or
financial condition.

Authorization. The execution, delivery, and performance of this Agreement by
Borrower, to the extent to be executed, delivered or performed by Borrower, have
been duly authorized by all necessary action by Borrower; do not require the
consent or approval of any other person, regulatory authority or governmental
body; and do not conflict with, result in a violation of, or constitute a
default under (a) any provision of its articles of incorporation or
organization, or bylaws or code of regulations, or any agreement or other
instrument binding upon Borrower or (b) any law, governmental regulation, court
decree, or order applicable to Borrower.

FINANCIAL information. Each financial statement of Borrower supplied to Lender
truly and completely disclosed Borrower's financial condition as of the date of
the statement, and there has been no material adverse change in Borrower's
financial condition subsequent to the date of the most recent financial
statement supplied to Lender. Borrower has no material contingent obligations
except as disclosed in such financial statements.

Legal Effect. This Agreement constitutes, and any instrument or agreement
required hereunder to be given by Borrower when delivered will constitute,
legal, valid and binding obligations of Borrower enforceable against Borrower in
accordance with their respective terms.

Properties. Except as contemplated by this Agreement or as previously disclosed
in Borrower's financial statements or in writing to Lender and as accepted by
Lender, and except for property tax liens for taxes not presently due and
payable, Borrower owns and has good title to all of Borrower's properties free
and clear of all liens and security interests, and has not executed any security
documents or financing statements relating to such properties. All of Borrower's
properties are titled in Borrower's legal name, and Borrower has not used, or
filed a financing statement under, any other name for at least the last five (5)
years.

                           Exhibit 10(c), Page 7 of 13


<PAGE>   8



Hazardous Substances. Except as disclosed to Lender in writing, no property of
Borrower ever has been, or ever will be so long as this Agreement remains in
effect, used for the generation, manufacture, storage treatment, disposal,
release or threatened release of any hazardous waste or substance, as those
terms are defined in the "CERCLA," "SARA," applicable state or Federal laws, or
regulations adopted pursuant to any of the foregoing. The representations and
warranties contained herein are based on Borrower's due diligence in
investigating the properties for hazardous waste and hazardous substances.
Borrower hereby (a) releases and waives any future claims against Lender for
Indemnity or contribution in the event Borrower becomes liable for cleanup or
other costs under any such laws, and (b) agrees to indemnify and hold harmless
Lender against any and all claims and losses resulting from a breach of this
provision of this Agreement. This obligation to indemnify shall survive the
payment of the Indebtedness and the satisfaction of this Agreement.

Commercial Purposes. Borrower intends to use the Loan proceeds solely for
business or commercial related purposes.

AFFIRMATIVE COVENANTS. Borrower covenants and agrees with Lender that, while
this Agreement is in effect, Borrower will:

Litigation. Promptly inform Lender in writing of (a) all material adverse
changes in Borrower's financial condition, and (b) all existing and all
threatened litigation, claims, investigations, administrative proceedings or
similar actions affecting Borrower or any guarantor of the Loan which could
materially affect the financial condition of Borrower or the financial condition
of any guarantor of the Loan.

Financial Records. Maintain its books and records in accordance with accounting
principles acceptable to Lender, applied on a consistent basis, and permit
Lender to examine and audit Borrower's books and records at all reasonable
times.

Financial Statements. Furnish Lender with, as soon as available, but in no event
later than one hundred twenty (120) days after the end of each fiscal year,
Borrower's balance sheet and income statement for the year ended, audited by a
certified public accountant satisfactory to Lender, and, as soon as available,
but in no event later than thirty (30) days after the end of each month,
Borrower's balance sheet and profit and loss statement for the period ended,
prepared and certified as correct to the best knowledge and belief by Borrower's
chief financial officer or other officer or person acceptable to Lender. All
financial reports required to be provided under this Agreement shall be prepared
in accordance with accounting principles acceptable to Lender, applied on a
consistent basis, and certified by Borrower as being true and correct.

Additional information. Furnish such additional information and statements,
lists of assets and liabilities, agings of receivables and payables, inventory
schedules, budgets, forecasts, tax returns, and other reports with respect to
Borrower's financial condition and business operations as Lender may request
from time to time.

Financial Covenants and Ratios.  Comply with the following covenants and ratios:

                           Exhibit 10(c), Page 8 of 13


<PAGE>   9



Tangible Net Worth. Maintain a minimum Tangible Net Worth of not less than
$3,500,000.00.

Working Capital. Maintain Working Capital in excess of $500,000.00.

Current Ratio. Maintain a ratio of Current Assets to Current Liabilities in
excess of 1.45 to 1.00.

Quick Ratio. Maintain a ratio of Liquid Assets to Current Liabilities in excess
of 0.60 to 1.00.

For purposes of this Agreement and to the extent the following terms are
utilized in this Agreement, the term 'Tangible Net Worth" shall mean Borrower's
total assets excluding all intangible assets (i.e., goodwill, trademarks,
patents, copyrights, organizational expenses, and similar intangible items, but
including leaseholds and leasehold improvements) less total Debt. The term
"Debt" shall mean all of Borrower's liabilities excluding Subordinated Debt. The
term "Subordinated Debt" shall mean indebtedness and liabilities of Borrower
which have been subordinated by written agreement to indebtedness owed by
Borrower to Lender in form and substance acceptable to Lender. The term 'Working
Capital" shall mean Borrower's current assets, less Borrower's current
liabilities. The term "Liquid Assets" shall mean Borrower's accounts receivable
plus cash on hand plus Borrower's readily marketable securities. The term "Cash
Flow" shall mean net income after taxes, and exclusive of extraordinary gains
and income, plus depreciation and amortization. Except as provided above, all
computations made to determine compliance with the requirements contained in
this paragraph shall be made in accordance with accounting principles acceptable
to Lender, applied on a consistent basis, and certified by Borrower as being
true and correct.

Life insurance. As soon as practical, obtain and maintain life insurance in form
and with insurance companies reasonably acceptable to Lender on the following
individual in the amount indicated below and, at Lender's option, cause such
insurance coverage to be pledged, made payable to, or assigned to Lender on
Lender's forms. Lender, at its discretion, may apply the proceeds of any
insurance policy to the unpaid balances of any Indebtedness:

                           Name of insured                   Amount
                           ---------------                   ------
                           William Stearns, President        $1,000,000.00

Loan Fees and Charges. In addition to all other agreed upon fees and charges,
pay the following: $50 + out of pocket.

Loan Proceeds. Use all Loan proceeds solely for Borrower's business operations,
unless specifically consented to the contrary by Lender in writing.

Performance. Perform and comply with all terms, conditions, and PROVISIONS set
forth in this Agreement and in the Related Documents in a timely manner, and
promptly notify Lender if Borrower learns of the occurrence of any event which
constitutes an Event of Default under this Agreement or under any of the Related
Documents.

Operations. Maintain executive and management personnel with substantially the
same

                           Exhibit 10(c), Page 9 of 13


<PAGE>   10



qualifications and experience as the present executive and management personnel;
provide written notice to Lender of any change in executive and management
personnel; conduct its business affairs in a reasonable and prudent manner and
in compliance with all applicable federal, state and municipal laws, ordinances,
rules and regulations respecting its properties, charters, businesses and
operations, including without limitation, compliance with the Americans With
Disabilities Act and with all minimum funding standards and other requirements
of ERISA and other laws applicable to Borrower's employee benefit plans.

Inspection. Permit employees or agents of Lender at any reasonable time to
inspect any and all Collateral for the Loan or Loans and Borrower's other
properties and to examine or audit Borrower's books, accounts, and records and
to make copies and memoranda of Borrower's books, accounts, and records. If
Borrower now or at any time hereafter maintains any records (including without
limitation computer generated records and computer software programs for the
generation of such records) in the possession of a third party, Borrower, upon
request of Lender, shall notify such party to permit Lender free access to such
records at all reasonable times and to provide Lender with copies of any records
it may request, all at Borrower's expense.

NEGATIVE COVENANTS. Borrower covenants and agrees with Lender that while this
Agreement is in effect, Borrower shall not, without the prior written consent of
Lender:

Indebtedness and Liens. (a) Except for trade debt incurred in the normal course
of business and indebtedness to Lender contemplated by this Agreement, create,
incur or assume indebtedness for borrowed money, including capital leases, (b)
except as allowed as a Permitted Lien, sell, transfer, mortgage, assign, pledge,
lease, grant a security interest in, or encumber any of Borrower's assets, or
(c) sell with recourse any of Borrower's accounts, except to Lender.

Continuity of Operations. (a) Engage in any business activities substantially
different than those in which Borrower is presently engaged, (b) cease
operations, liquidate, merge, transfer, acquire or consolidate with any other
entity, change ownership, change its name, dissolve or transfer or sell
Collateral out of the ordinary course of business, (c) pay any dividends on
Borrower's stock (other than dividends payable in Its stock), provided, however
that notwithstanding the foregoing, but only so long as no Event of Default has
occurred and is continuing or would result from the payment of dividends, if
Borrower is a "Subchapter S Corporation" (as defined in the Internal Revenue
Code of 1986, as amended), Borrower may pay cash dividends on its stock to its
shareholders from time to time in amounts necessary to enable the shareholders
to pay income taxes and make estimated income tax payments to satisfy their
liabilities under federal and state law which arise solely from their status as
Shareholders of a Subchapter S Corporation because of their ownership of shares
of stock of Borrower, or (d) purchase or retire any of Borrower's outstanding
shares or alter or amend Borrower's capital structure.

Loans, Acquisitions and Guaranties. (a) Loan, invest in or advance money or
assets, (b) purchase, create or acquire any interest In any other enterprise or
entity, or (c) incur any obligation as surety or guarantor other than in the
ordinary course of business.

Salaries. Make or permit any withdrawals or pay or contract to pay any salaries,
commissions,

                          Exhibit 10(c), Page 10 of 13


<PAGE>   11



bonuses or other compensation for services in excess of the following annual
amount for the person indicated below or to any other person or persons
performing services of a similar nature:

                           Name                   Amount
                           ----                   ------
                           None                   $

CESSATION OF ADVANCES. If Lender has made any commitment to make any Loan to
Borrower, whether under this Agreement or under any other agreement, Lender
shall have no obligation to make Loan advances or to disburse Loan proceeds if:
(a) Borrower or any guarantor is in default under the terms of this Agreement or
any other agreement that Borrower or any guarantor has with Lender; (b) Borrower
or any Guarantor becomes insolvent, files a petition in bankruptcy or similar
proceedings, or is adjudged a bankrupt; (c) there occurs a material adverse
change in Borrower's financial condition, in the financial condition of any
guarantor, or in the value of any collateral securing any Loan; (d) any
guarantor seeks, claims or otherwise attempts to limit, modify or revoke such
guarantor's guaranty of the Loan or any other loan with Lender; or (e) Lender in
good faith deems itself insecure, even though no Event of Default shall have
occurred.

SALE OF COMMON STOCK. The sale of common stock of the company by William and
Sally Stearns will not exceed that which is allowed under Section 144 of the
Securities Exchange Commission.

CROSS COLLATERALIZATION. This loan is cross collateralized with a loan in the
name of Stearns and Lehman, Inc. dated December 2, 1996, In the amount of
$400,000.

MONTHLY AGING OF ACCOUNTS RECEIVABLE & ACCOUNTS PAYABLE. Monthly aging of
accounts receivable and accounts payable is required from Borrower to Lender.

RIGHT OF SETOFF. Borrower grants to Lender a contractual possessory security
interest in, and hereby assigns, conveys, delivers, pledges, and transfers to
Lender all Borrower's right, title and interest in and to, Borrower's accounts
with Lender (whether checking, savings, or some other account), including
without limitation all accounts held jointly with someone else and all accounts
Borrower may open in the future, excluding however all IRA and Keogh accounts,
and all trust accounts for which the grant of a security interest would be
prohibited by law. Borrower authorizes Lender, to the extent permitted by
applicable law, to charge or setoff all sums owing on the Indebtedness against
any and all such accounts.

EVENTS OF DEFAULT. Each of the following shall constitute an event of default
("Event of Default") under this Agreement:

Default on indebtedness. Failure of Borrower to make any payment when due on the
Loans.

Other Defaults. Failure of Borrower to comply with or to perform when due any
other term, obligation, covenant or condition contained In this Agreement.

                          Exhibit 10(c), Page 11 of 13


<PAGE>   12



Default in Favor of Third Parties. Should Borrower default under any loan,
extension of credit, security agreement, purchase or sales agreement, or any
other agreement, in favor of any other creditor or person that may materially
affect any of Borrower's property or Borrower's ability to repay the Loans or
perform Borrower's obligations under this Agreement or any related document.

False Statements. Any warranty, representation or statement made or furnished to
Lender by or on behalf of Borrower is false or misleading in any material
respect at the time made or furnished, or becomes false or misleading at any
time thereafter.

Insolvency. The dissolution or termination of Borrower's existence as a going
business, the insolvency of Borrower, the appointment of a receiver for any part
of Borrower's property, any assignment for the benefit of creditors, any type of
creditor workout, or the commencement of any proceeding under any bankruptcy or
insolvency laws by or against Borrower.

Creditor or Forfeiture Proceedings. Commencement of foreclosure or forfeiture
proceedings, whether by judicial proceeding, self-help, repossession or any
other method, by any creditor of Borrower, any creditor of any grantor of
collateral for the Loan. This includes a garnishment, attachment, or levy on or
of any of Borrower's deposit accounts with Lender.

Events Affecting Guarantor. Any of the preceding events occurs with respect to
any Guarantor of any of the Indebtedness or any Guarantor dies or becomes
incompetent, or revokes or disputes the validity of, or liability under, any
Guaranty of the Indebtedness. Lender, at its option, may, but shall not be
required to, permit the Guarantor's estate to assume unconditionally the
obligations arising under the guaranty in a manner satisfactory to Lender, and,
in doing so, cure the Event of Default.

Change in Ownership. Any change in ownership of twenty-five percent (25%) or
more of the common stock of Borrower.

Adverse Change. A material adverse change occurs in Borrower's financial
condition, or Lender believes the prospect of payment or performance of the
Indebtedness is impaired.

Insecurity.  Lender, in good faith, deems itself insecure.

EFFECT OF AN EVENT OF DEFAULT. If any Event of Default shall occur, except where
otherwise provided in this Agreement or the Related Documents, all commitments
and obligations of Lender under this Agreement immediately will terminate
(including any obligation to make Loan Advances or disbursements), and, at
Lender's option, all Indebtedness immediately will become due and payable, all
without notice of any kind to Borrower, except that in the case of an Event of
Default of the type described in the "Insolvency" subsection above, such
acceleration shall be automatic and not optional. In addition, Lender shall have
all the RIGHTS and remedies provided in the Related Documents or available at
law, in equity, or otherwise. Except as may be prohibited by applicable law, all
of Lender's RIGHTS and remedies shall be cumulative and may be exercised
singularly or concurrently. Election by Lender to pursue any remedy shall not

                          Exhibit 10(c), Page 12 of 13


<PAGE>   13



exclude pursuit of any other remedy, and an election to make expenditures or to
take action to perform an obligation of Borrower or of any Grantor shall not
affect Lender's right to declare a default and to exercise Its RIGHTS and
remedies.

BORROWER ACKNOWLEDGES HAVING READ ALL THE PROVISIONS OF THIS BUSINESS LOAN
AGREEMENT, AND BORROWER AGREES TO ITS TERMS. THIS AGREEMENT IS DATED AS OF
DECEMBER 2, 1996.

BORROWER:

Stearns and Lehman, Inc.

By:  /s/  William Stearns, President          By:  /s/ Sally Stearns, Secretary

LENDER:

First-Knox National Bank

By:  /s/ James Brinker, Authorized Officer





                          Exhibit 10(c), Page 13 of 13