Probobly my biggest pet peeve in hockey is players (defencemen especially) who completely stop playing, either to make it seem like they don't deserve a penalty, or to try and draw a penalty. All you're doing is either drawing attention to yourself, or giving up a possible scoring chance so thay you might get a powerplay. Just keep playing dammit, if it was a penalty, more often than not, it will be called, regardless of what you do.
(This comes from what Lee just did on top of what Picard did the other night)