My worst habit is that since I can't possibly get hurt on kickers if the landing is semi soft, I throw the most ridiculous things that I can never land.
It's embarrassing when people are waiting at the top for you to go get your goggles, poles and skis...
Oh and often I can't make up my mind if I'm going to do a 5 or a 7 or a 9 so I just kinda decide near the end of my trick, which always fucks me over mightily