This excerpt taken from the WOOF 10-K filed Mar 1, 2007.
b. Use of Estimates in Preparation of Financial Statements
The preparation of our consolidated financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and contingent liabilities at the date of our consolidated financial statements and our reported amounts of revenue and expense during the reporting period. Actual results could differ from our estimates.
VCA ANTECH, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)