Talk to the hand

I can't leave Peter in his room after Mary falls asleep, because he will wake her up. Instead, he goes on my bed, which is right near my computer, and he putters around for 10 or 15 minutes (usually) before he falls asleep. I relocate him later.

Sometimes, he doesn't feel like going to sleep and he'll keep coming out of the room behind me to "tell me some-fing." Without even looking up from the computer, I'll put up my hand in a universally understood "HALT" sign and tell him to go back to bed.

A few nights ago, he came out with this drawing and asked me to put an "M" for Mommy above one of his characters. He explained he hadn't had time to finish it, so it doesn't have all the children in the picture. But it does have DAD, and he labeled Dad all by himself much to my surprise. Which one is Mom? The one with the BIG HAND.