OCDs for symmetry (even movements; for example, if I twist one wrist one way, I have to mirror it with the other), volume on TV (must end in either 5 or 0), Light switches (although that may count as symmetry), people putting things in the wrong boxes (I freaked out and attacked my sister, then spent FOUR HOURS sorting the entire cupboard and making sure everything was in place) and ordering things (i.e in a colour scale, stacking books on my desk and making sure they're exactly aligned or the smaller ones are in the exact middle (I will actually use a ruler if I can't be sure (Sweet! Triple brackets!)) and shuffling cards etc., so they're all the right way up and they're all exactly in line), I won't ever eat with or off somebody else's plate/cutlery or share their drink unless I use a separate straw, and if somebody steals a chip, for example, or touches one and then puts it back, they have to take it and any other one they touched, people messing with my hair (I carry around a brush and start to freak when I don't have it). There's more, but that's enough to be getting on with.