<PAGE>   1
                                                                    EXHIBIT 10.8


                      PROMOTIONAL SHARES LOCK-IN AGREEMENT


I. This Promotional Shares Lock-In Agreement (this "Agreement") is entered into
on ____ day of _____________, 2001, by and among PETSVETSANDYOU, INC., a Florida
corporation (the "Issuer"), whose principal place of business is located at
10919 North Dale Mabry Highway, Tampa, Florida 33618 and JAMES J. CARLSTEDT,
EDUARDO GARCIA, D.V.M. and NEIL L. COLBY AND SVETLANA ("LANA") P. COLBY, AS
TENANTS BY THE ENTIRETIES, (collectively, the "Security Holders").

         WITNESSETH THAT,

         A.       The Issuer has filed an application with the Securities
                  Administrators of the States listed in Schedule A attached
                  hereto ("Administrators") to register certain of its Equity
                  Securities (as defined in the North American Securities
                  Administrators Association (the "NASAA") Statement of Policy
                  on Corporate Securities Definitions Policy (the "NASAA
                  Policy")) for sale to public investors who are residents of
                  those states ("Registration");

         B.       The Security Holders listed on Schedule B attached hereto are
                  the owners of the shares of common stock or similar securities
                  and/or possess convertible securities, warrants, options or
                  rights which may be converted into, or exercised to purchase
                  shares of common stock or similar securities of the Issuer,
                  which constitute Promotional Shares (as defined in the NASAA
                  Policy and which are deemed and defined for purposes of this
                  Agreement as Promotional Shares.

         C.       As a condition to Registration, the Issuer and the Security
                  Holders (collectively, the "Signatories") agree to be bound by
                  the terms of this Agreement.

II.      THEREFORE, the Security Holders agree not to sell, pledge, hypothecate,
assign, grant any option for the sale of, or otherwise transfer or dispose of,
whether or not for consideration, directly or indirectly, the Promotional Shares
and all certificates representing stock dividends, stock splits,
recapitalizations, and the like, that are granted to, or received by, the
Security Holders while the Promotional Shares are subject to this Agreement (the
"Restricted Securities").

         A.       Beginning two years from the completion date of the public
                  offering, two and one-half percent (2 1/2%) of the Restricted
                  Securities may be released from the restrictions of this
                  Agreement each quarter pro rata among the Security Holders.
                  All remaining Restricted Securities shall be released from
                  escrow on the anniversary of the fourth year from the
                  completion date of the public offering; OR

         B.       If the Issuer's Aggregate Revenues (as defined in the NASAA
                  Policy) are:

                  $500,000 or more, provided that neither the auditor's report
                  nor any footnote to the Issuer's latest audited financial
                  statements contain an opinion or statement regarding the
                  ability of the Issuer to continue as a going concern, then
                  beginning one year


<PAGE>   2

                  from the date of completion of the public offering, two and
                  one-half percent (2 1/2%) of the Restricted Securities held
                  in escrow may be released each quarter pro rata among the
                  Security Holders. All remaining Restricted Securities shall be
                  released from escrow on the second anniversary from the date
                  of completion of the public offering.

III.     THEREFORE, the Signatories agree and will cause the following:

         A.       In the event of a dissolution, liquidation, merger,
                  consolidation, reorganization, sale or exchange of the
                  Issuer's assets or securities (including by way of tender
                  offer), or any other transaction or proceeding with a person
                  who is not a Promoter, which results in the distribution of
                  the Issuer's assets or securities ("Distribution"), while this
                  Agreement remains in effect that:

                  1.       All holders of the Issuer's Equity Securities will
                           initially share on a pro rata, per share basis in the
                           Distribution, in proportion to the amount of cash or
                           other consideration that they paid per share for
                           their Equity Securities (provided that the
                           Administrators have accepted the value of the other
                           consideration), until the shareholders who purchased
                           the Issuer's Equity Securities pursuant to the public
                           offering ("Public Shareholders") have received, or
                           have had irrevocably set aside for them, an amount
                           that is equal to one hundred percent (100%) of the
                           public offering's price per share times the number of
                           shares of Equity Securities that they purchased
                           pursuant to the public offering and which they still
                           hold at the time of the Distribution, adjusted for
                           stock splits, stock dividends recapitalizations and
                           the like; and

                  2.       All holders of the Issuer's Equity Securities shall
                           thereafter participate on an equal, per share basis
                           times the number of shares of Equity Securities they
                           hold at the time of the Distribution, adjusted for
                           stock splits, stock dividends, recapitalizations and
                           the like.

                  3.       The Distribution may proceed on lesser terms and
                           conditions that the terms and conditions stated in
                           paragraphs 1 and 2 above if a majority of the Equity
                           Securities that are not held by Security Holders,
                           officers, directors, or Promoters (as defined in the
                           NASAA Policy) of the Issuer, or their associates or
                           affiliates vote, or consent by consent procedure, to
                           approve the lesser terms and conditions.

         B.       In the event of a dissolution, liquidation, merger,
                  consolidation, reorganization, sale or exchange of the
                  Issuer's assets or securities (including by way of tender
                  offer), or any other transaction or proceeding with a person
                  who is a Promoter, which results in a Distribution while this
                  Agreement remains in effect, the Restricted Securities shall
                  remain subject to the terms of this Agreement.


                                       2
<PAGE>   3

         C.       Restricted Securities may be transferred by will, the laws of
                  descent and distribution, the operation of law, or by order of
                  any court of competent jurisdiction and proper venue.

         D.       Restricted Securities of a deceased Security Holder may be
                  hypothecated to pay the expenses of the deceased Security
                  Holder's estate. The hypothecated Restricted Securities shall
                  remain subject to the terms of this Agreement. Restricted
                  Securities may not be pledged to secure any other debt.

         E.       Restricted Securities may be transferred by gift to the
                  Security Holder's family members, provided that the Restricted
                  Securities shall remain subject to the terms of the Agreement.

         F.       With the exception of paragraph A.3 above, the Restricted
                  Securities shall have the same voting rights as similar Equity
                  Securities not subject to the Agreement.

         G.       A notice shall be placed on the face of each stock certificate
                  of the Restricted Securities covered by the terms of the
                  Agreement stating that the transfer of the stock evidenced by
                  the certificate is restricted in accordance with the
                  conditions set forth on the reverse side of the certificate;
                  and

         H.       A typed legend shall be placed on the reverse side of each
                  stock certificate of the Restricted Securities representing
                  stock covered by this Agreement which states that the sale or
                  transfer of the shares evidenced by the certificate may be
                  subject to certain restrictions until the date that is 4 years
                  from completion of the offering pursuant to this Agreement
                  between the Security Holders (whether beneficial or of record)
                  and the Issuer, which agreement is on file with the Issuer and
                  the stock transfer agent from which a copy is available upon
                  request and without charge.

         I.       The term of this Agreement shall begin on the date that the
                  Registration is declared effective by the Administrators
                  ("Effective Date") and shall terminate:

                  1.       On the anniversary of the fourth year from the
                           completion date of the public offering; or

                  2.       On the date the Registration has been terminated if
                           no securities were sold pursuant thereto; or

                  3.       If the Registration has been terminated, the date
                           that checks representing all of the gross proceeds
                           that were derived therefrom and addressed to the
                           public investors have been placed in the U. S. Postal
                           Service with first class postage affixed; or

                  4.       On the date the securities subject to this Agreement
                           become "Covered Securities," as defined under the
                           National Securities Markets Improvement Act of 1996.


                                       3
<PAGE>   4

         J.       This Agreement to be modified only with the written approval
                  of the Administrators.

IV.      THEREFORE, the Issuer will cause the following:

         A.       A manually signed copy of the Agreement signed by the
                  Signatories to be filed with the Administrators prior to the
                  Effective Date;

         B.       Copies of the Agreement and a statement of the per share
                  initial public offering price to be provided to the Issuer's
                  stock transfer agent.

         C.       Appropriate stock transfer orders to be placed with the
                  Issuer's stock transfer agent against the sale or transfer of
                  the shares covered by the Agreement prior to its expiration,
                  except as may otherwise be provided in the Agreement;

         D.       The above stock restriction legends to be placed on the
                  periodic statement sent to the registered owner if the
                  securities subject to this Agreement are uncertificated
                  securities.

Pursuant to the requirements of this Agreement, the Signatories have entered
into this Agreement, which may be written in multiple counterparts and each of
which shall be considered an original. The Signatories have signed the Agreement
in the capacities, and on the dates, indicated.

IN WITNESS WHEREOF, the Signatories have executed this Agreement.

                                        PETSVETSANDYOU, INC.



                                        By:
------------------------------             -------------------------------------
Date                                       James J. Carlstedt, President


                                                      (the "Issuer")



------------------------------          ----------------------------------------
Date                                    JAMES J. CARLSTEDT


                                       4
<PAGE>   5

                                        NEIL L. COLBY AND SVETLANA "LANA" P.
                                        COLBY, AS TENANTS BY THE ENTIRETIES


-----------------------------           ----------------------------------------
Date                                    Neil L. Colby


                                        ----------------------------------------
                                        Svetlana "Lana" P. Colby

                   AND


-----------------------------           ----------------------------------------
Date                                    EDUARDO GARCIA, D.V.M.

                                               (the "Security Holders")


                                       5
<PAGE>   6

                                   SCHEDULE A
                                 LIST OF STATES

Alabama, Arizona, Arkansas, California, Connecticut, Delaware, Idaho, Indiana,
Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Mississippi,
Missouri, Montana, Nevada, New Hampshire, New Jersey, New Mexico, North Dakota,
Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota,
Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Colorado,
Florida, Georgia, Illinois, Louisiana, Minnesota, New York, Ohio, Tennessee and
Wyoming.

This Schedule may be modified by the parties based on the number of states in
which the offering becomes effective.


<PAGE>   7

                                   SCHEDULE B
             LIST OF SECURITY HOLDERS AND SHARES SUBJECT TO LOCK-IN

<TABLE>
<CAPTION>
NAME                                                    NUMBER OF SHARES SUBJECT TO LOCK-IN
----                                                  ----------------------------------------
<S>                                                   <C>
James J. Carlstedt                                    20,443.2 shares of Class B common stock
3103 Samara Drive                                         20 shares of Class A common stock
Tampa, Florida  33618


Neil L. Colby and Svetlana "Lana" P. Colby,           20,4436.2 shares of Class B common stock
         as tenants by the entireties                     20 shares of Class A common stock
8184 Via Di Veneto
Boca Raton, Florida 33496

Eduardo Garcia, D.V.M.                                20,443.2 shares of Class B common stock
4241 Henderson Boulevard                                  2,180 shares of Class A common stock
Tampa, Florida  33629                                       600 shares of preferred stock
</TABLE>

         *The number of shares reflects 1-for-5 reverse stock split of the
Company completed January 23, 2001. The number of shares subject to this
Agreement shall also include any and all additional shares of any class of the
Company acquired by any of the above parties pursuant to the anti-dilution
provisions contained in the Company's articles of incorporation.