I used to do it all the time. I may have been really good at school, but it was boring as all get up, so I used up all of my sick days every semester. (luckily, I very rarely actually get sick, and on top of that, I'm the kind of guy that will still go to school or work if I'm sick.) Never anything specific though, just didn't want to go to school, would rather sleep.
I'm sure I've done it once or twice, I simply don't rem-...
It came back, just this second! Yeah, mom had me excused from school right around the time we were moving to the US, last legs of school back in Hungary. I was a bit shaken up at that time, so she said that it was cool.
Beyond that, no. Always had a good reason to miss stuff.
The vast majority of the time I won't, but to get out of a speech day (award ceremony thing) in secondary school I once made myself throw up. Like I said, normally I wouldn't, but THEY WERE SO DAMN BORING.
Once I pretended to be on the verge of cardiac arrest to get out of going to a boyfriend's family Christmas party. He was so super cereal about us and it was just high school and I just didn't want anything to do with it. >.< ended horribly, but you know... I was 15... too much pressure.
Another time I faked sick because they had put me with a horrible human being for a work partner who belittled me all day long to the point of panic attacks. I told the boss about her and she said she couldn't put anyone else with her. So I stayed out a day and by the next day, everyone knew what I was talking about. Best strategic call out of my life.