Document:

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                                                                   Exhibit 10-BI
                               SECOND AMENDMENT TO
                              EMPLOYMENT AGREEMENT

         This second amendment to the employment agreement entered into on the
17th day of January, 1996, by and between the Columbia Energy Group (formerly
named "The Columbia Gas System, Inc.") (the "Company") and Catherine Good Abbott
(the "Executive"), which agreement was amended on the 14th day of July, 1999
(the agreement, as amended, the "Agreement"), is made effective the 21st day of
July, 2000.

                                    RECITALS

         WHEREAS, the Company and the Executive are parties to the Agreement;
and

         WHEREAS, the Company has entered into an Agreement and Plan of Merger
among Columbia Energy Group, NiSource, Inc., New NiSource, Inc., Parent
Acquisition Corp., Company Acquisition Corp. and NiSource Finance Corp., dated
as of February 27, 2000, as amended and restated as of March 31, 2000 (the
"Merger Agreement"), shareholder approval of which would constitute a Change in
Control(1) for purposes of the Agreement; and

         WHEREAS, the Company desires to make arrangements at this time to help
further assure the Executive's continuing dedication to her duties to the
Company and its shareholders through the critical period ending with the
"Effective Time" as defined in the Merger Agreement; and

         WHEREAS, the Company and the Executive wish to amend certain provisions
in the Agreement to effect such objectives; and

         WHEREAS, Section 14(2) of the Agreement provides that the Agreement may
be amended by written instrument executed by the Company and the Executive.

         NOW, THEREFORE, for valuable consideration, the receipt and sufficiency
of which is acknowledged by the Company and the Executive, the Company and the
Executive hereby agree as follows:

         1. Section 7(e)(i) of the Agreement shall be amended to read as
follows:

                  "(e) (i) The 90th day after the Executive notifies the Company
                  (or any successor to the Company) in writing that she is
                  terminating her employment as a result of the occurrence of a
                  "Change in Control" (as that term is defined below), PROVIDED
                  such notice is given in writing by the Executive to the
                  Company no later than 180 days after such event; PROVIDED,
                  further, that if the Executive

______________________

         1        Capitalized terms in this Amendment shall have the meaning as
                  set forth in the Agreement except as otherwise expressly set
                  forth herein.
         2        References to sections are to the sections in the Agreement,
                  as amended by the amendment dated July 14, 1999.
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                  terminates her employment as a result of Company shareholder
                  approval of the Agreement and Plan of Merger among Columbia
                  Energy Group, NiSource, Inc., New NiSource, Inc., Parent
                  Acquisition Corp., Company Acquisition Corp. and NiSource
                  Finance Corp., dated as of February 27, 2000, as amended and
                  restated as of March 31, 2000 (the "Merger Agreement"), the
                  Executive may give written notice of such termination of
                  employment to the Company at any time during the period
                  beginning on the date of shareholder approval of the Merger
                  Agreement and ending on the "Effective Time" as defined in the
                  Merger Agreement (the "Effective Time"), and, in such case,
                  the Executive's employment shall terminate on the date
                  specified in such notice of termination, which termination
                  date shall (unless otherwise mutually agreed by Executive and
                  the Company) be at least 14 days after the date notice of
                  termination is given but not sooner than 90 days after
                  shareholder approval of the Merger Agreement (unless the
                  termination date specified in the notice of termination is the
                  Effective Time, in which case the termination date shall be
                  the Effective Time whether or not the Effective Time occurs
                  prior to expiration of such 14 and 90 day periods); PROVIDED,
                  further, that all payments to be made to the Executive under
                  Sections 8(d)(i), 8(d)(ii)(B) and 8(d)(ii)(C) (if under
                  Section 8(d)(ii)(C) the Company decides on or prior to the
                  date of employment termination to pay a cash equivalent
                  thereunder) and any other payments to be made under this
                  Agreement to the Executive upon termination of employment
                  because of a termination of employment pursuant to this
                  Section 7(e)(i) after Company shareholder approval of the
                  Merger Agreement, shall be paid by the Company to the
                  Executive on or before the earlier of (A) the 30th business
                  day following the termination of the Executive's employment or
                  (B) the "Closing Date" as defined in the Merger Agreement (the
                  "Closing Date"), and, furthermore, any payments under Section
                  8(f)(i) shall be paid to the Executive on the Closing Date."

         All provisions of the Agreement not specifically mentioned in this
Second Amendment shall be considered modified to the extent necessary to be
consistent with the changes made in this Second Amendment.

                                           Columbia Energy Group

                                           By /s/ Oliver G. Richard III
                                              ---------------------------------
                                              Chairman, Chief Executive Officer
                                              and President
Attested:

/s/ Sharon B. Heaton                       /s/ Catherine Good Abbott
---------------------------------          ------------------------------------
                                           Catherine Good Abbott<PAGE>   1
                                                                     Exhibit 4.1

                                 AMENDMENT NO. 1
                                       TO
                   9.5% UNSECURED CONVERTIBLE GRID DEBENTURES

                          Amendment No. 1, dated as of
                        July 31, 2000, to 9.5% Unsecured
                            Convertible Debentures of
                            Balanced Care Corporation

         Reference is made to the 9.5% Unsecured Convertible Grid Debentures
issued to each of HR Investments Limited, RH Investments Limited and VXM
Investments Limited by Balanced Care Corporation, a Delaware corporation (the
"Company"), in the aggregate original principal amount of $14,000,000 with a
Maturity Date of July 1, 2005 (the "Debentures").

         For good and valuable consideration, the receipt and sufficiency of
which is hereby acknowledged by each of the parties hereto, the parties hereby
agree as follows:

         1. Section 3.1(a) of the Debentures is hereby amended and restated to
read in its entirety as follows:

            "(a) Payment in Kind. Provided that the Corporation has not advised
            the Holder in writing that it wishes to pay interest in cash on any
            Interest Payment Date, at least 10 Business Days prior to such
            Interest Payment Date, the Corporation shall forward to the Holder a
            copy of the Grid Schedule updated to reflect the interest payment
            due on such date and the increased "Outstanding Principal Amount"
            under this Debenture, as increased by the amount of such interest
            payment that will not be paid in cash by the Corporation on such
            Interest Payment Date; provided that prior to any such Interest
            Payment Date, unless waived by the Holder, the Corporation has
            caused to be filed with the American Stock Exchange ("AMEX") an
            Additional Listing Application in form and substance reasonably
            satisfactory to the

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            Holder (an "Application") covering the number of Common Shares
            issuable upon exercise of the Conversion Right with respect to the
            amount of interest required to be paid on such Interest Payment Date
            and such Application has been approved by AMEX."

         2. Article VII of the Debentures is hereby amended to add a new Section
7.13 to read in its entirety as follows:

            "7.13 Actions Requiring Adjustment of Conversion Rate. Unless waived
            by the Holder, the Corporation shall not take any action or suffer
            any action to be taken that would result in an adjustment of the
            Conversion Rate under Section 4.4 of this Debenture unless the
            Corporation has caused to be filed with AMEX an Application covering
            the number of Common Shares issuable upon such adjustment and such
            application has been approved by AMEX."

         3. Except as provided herein, the provisions of the Debentures are
hereby confirmed in all respects.

         4. This Amendment No. 1, together with the Debentures, constitutes the
entire Agreement among the parties relating to the subject matter hereof and
supercedes all oral statements and prior writings with respect thereto.

                            [SIGNATURE PAGE FOLLOWS]

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                  IN WITNESS WHEREOF, the parties hereto have caused this
Amendment to be duly executed as of the date first above written.

                                       HR INVESTMENTS LIMITED

                                       By: /s/ J.B. Unsworth
                                          -----------------------------------
                                           Name: J.B. Unsworth
                                           Title: Director

                                       RH INVESTMENTS LIMITED

                                       By: /s/ J.B. Unsworth
                                          -----------------------------------
                                           Name: J.B. Unsworth
                                           Title: Director

                                       VXM INVESTMENTS LIMITED

                                       By: /s/ J.B. Unsworth
                                          -----------------------------------
                                           Name: J.B. Unsworth
                                           Title: Director

                                       BALANCED CARE CORPORATION

                                       By: /s/ Robin L. Barber
                                          -----------------------------------
                                          Name: Robin L. Barber
                                          Title: Senior Vice President
                                                 and Legal Counsel & Assistant
                                                 Secretary

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