The only lessons I ever skipped were PE lessons - it was easy, because as long as you walked into the changing rooms at the beginning of the lesson, they just kind of assumed you were there (and I always figured they were secretly glad when I didn't go into the actual lesson - they really didn't know what to do with me.) And there was a sub-changing room where me and a couple of the other nerds 'n' emos would hang out and... do our homework. Because rebels, lol. In fairness, one girl smoked so she like burned a bar of soap with her lighter one day for the shiggles, which kind of fit the mitching image more.

Occasionally we had a male PE teacher who was harder to evade, but on the plus side he was super-sexist (yes, that's a plus side,) so we'd just like... cry, if he asked us to do something we didn't feel like doing. And he'd panic and kind of wander off. Or else we'd refer vaguely to 'girl problems' and he'd leave us alone for like three weeks, which is clearly how long menstruation lasts - it worked even better when we had the foreign exchange girl with us, because she just pretended she didn't speak perfect English and caused mass confusion ;)