Oh, I forgot to say...
You wont get ratty with the world because of withdrawl symptoms - there wont be any.
It is a myth designed to keep you hooked - trust me, it's all programed into your subconscious - just learn to identify it and see it for what it is.
Everytime you feel like you are tensing up and 'think' that you need a cigarette, think to yourself - "I do not NEED a ciggie....what possible benefit am I getting from it?....cancer?....emphasemia?"
*he says, as he sparks up another hoofing great joint lol*
We're all rooting for ya, dude!