Not to sound unsympathetic, but there can be another side. Years ago, I had an apprentice who wanted a day off to attend his girl friend's graduation, in another city. When he asked, three weeks in advance, he was told "There are no days off around here". When the big day arrived, he didn't show; and, while he was awol, he took a second day. The third day, he was sent home as punishment. So, short one man for one day turned into three days.
On the fourth day, the boss told the apprentice that the labor standards act allowed him to designate holidays for employees, so he took the apprentice into the office and wrote his name on a calander for two weeks off (less three days, of course), a couple months in the future.
The conversation on the first day of the apprentice's holidays went like this:
Me: Who shall I take?
Boss: Craig, of course.
Me: He's on holidays.
Boss: Who said he could have holidays?
Me: It's on the calender.
Boss: You guys can't just write your names down for holidays.
Me: That's your handwriting.
Boss: I just meant that he could ask for those days.
Me: Get your tools.
Since then, I've always wondered how many employer's problems are self-inflicted.