I'm curious: what rules have you dealt with that were just "too much" -- whether they were "official" (i.e. in print) or not?
I think a good, general one is R-rated movies. Though to be honest, I'm half-expecting them to make a comment about PG-13 movies, the way they get away with so much in them.
In another thread, a poster (sorry, I don't have your name right now) provided the following too: not having anything to do with Pokemon (LOL!), not going to college, and not being a cheerleader in school.
Also, I think that their stringent policies about oral sex are ludicrous. What a husband and wife do in their own bedroom is their own business. The WTBTS really tries to cram itself into every aspect of life, doesn't it?
What else have you got?