[Sio]

Hmm habits ey.
Well I bite my finger nails horribly, and when I cant bite them down any fursther I take whatever I can find around me (normally a penknive or paperclip) and dig it under my cuticals so I can bite them too.

And if I say, knock my arm on the wall then I have to knock my other arm on the wall, or swithc the light in my bedroom off twice before I go to bed, ive always done that stuff since I was a kid and just cant relax or settle down if I dont.