Me friend's rat is the brother of my boys, and he hates me.
The past four times I have played with me he has bitten me

I never even do anything to make him want to (I can't see the reason anyway)
Last night I had him on my lap and wasn't touching him or anything, and he was trying to climb up my chest to get at my hands. When he couldn't he bit me on the leg?
I have never been biten by a rat before, and I play with a lot of different ones.