He Has a Bit of a Point

Conversation as we drove home from school and work yesterday.

I look in the rearview mirror and the Boy is biting his arm.
Momma: What are you doing?
The Boy (mouth still attached to arm): I am biting off my arm.
Momma: Why are you doing that?
The Boy: I don't know. (sidenote, the Boy has now taken to saying I don't know and I don't care at every turn. I know he has heard us say I don't know, but where did he learn to say I don't care?)
Momma: You shouldn't do that, you need your arm.
The Boy: Why? (also a favorite)
Momma: So you can write your name, throw a football and eat.
The Boy: I don't need my arm to do that, I have my hand.

Oh, I didn't realize.