For each of the following cases, respond to the question asked and indicate the accounting principle or concept that applies.
1. Richard Perez is the sole proprietor of In and Out Mini Market. Perez's accountant insists that he keep a detailed record of money and merchandise that he takes out of the business for personal use. Why?
2. At the end of each fiscal period, the accountant for Florida Company requires that a careful inventory be made of the office supplies and that the amount on hand be reported as an asset and the amount used during the period be reported as an expense. Why?
3. Haden Co. purchased many small tools during 2016 at a total cost of $8,000. Some tools were expected to last for a few weeks, some for several months, and some for several years. Haden's income for 2016 will be about $4.5 million. How should Haden account for the small tools in order to be theoretically correct? As a practical matter, how should Haden account for these tools? Why?