However, if that employee drives from her home to the airport for a business reason, then her mileage is not deductible. In general, a company will adopt the IRS rules for mileage deduction as its standard policy.
Employees are restricted to one beer and are not allowed to drive while intoxicated. The goal isn't to promote drinking but to let employees know they're appreciated, which Fuicelli says is a small price that pays huge dividends..
But, if you're really pressed, you can come back and still find a beer quite worth drinking after 96 hours. It does appear, though, that towards the end you have to worry more about variance as we saw the three day old beer with a bit more wear on it than the four day old beer.