What's your worst habit?

I'm accident prone...everything's my worst habit..T.T

Self-consciousness.
If someone wants me to do something, I don't know how they want it done, so I hesitate for like five minutes, and when they yell at me, I babble like and idiot: "W-w-well, I d-didn't know h-how 你 want-t-ted it done!"
Gagh
>.<
*facepalm*

i cant say. im a clumsy person and defind as strainge so i say things that always need refrased 或者 are not understood. so a lot of things are my worst hapit i guess.

日 dreaming about Bubbles. ;)

I have a disorder where everytime someone touches me (i.e on the soulder) i need to rub it off on a wall
kinda stupid...i know....

唱歌 randomly and not noticing it, and biting my fingernails. And cannibalism.

I think it's everything with me: I chew my lip, (which gets real annoying when 你 don't want to but it just happens... sometimes 你 don't even realize!!) I'm really self conscious, (I always wear really large shirts when I can fit into sizes that are majorly smaller than that) and I have a smart-mouth. (I don't get into trouble with it anymore---everyone's gotten so used to it around me, and some even laugh at my mean jokes) It's ten times harder to stop a habit than start one. It sucks. :(

Nail biting, and sometimes I bite it too much then the nail rips too far down and it hurts sooooo bad.
:(