A day off is when you call in "sick," as in sick & tired. Or you call in and say that your car won't start, and it won't if you don't put the key in. Or you call in and say there's a death in the family, and then you fly out to Vegas. And you can tell your boss that you have to leave early to take your kid to the dentist, and you drop the top on the car and just go cruising.'