Kids are Odd
So my otherwise extremely bright son is kneeling on the couch, rocking back and forth in an autistic sort of way and smashing his face into the backrest cushion. This is all well and good, but the couch also has a hard back on which the cushion rests, and if he happens to miss that cushion he's going to mash his face on it. I put out my hand and interrupt his downward rock with my hand, and at first he thinks this is funny and keeps rocking and pushing his face into my hand. Then he tires of that and keeps trying to push my hand out of the way. I explain to him that he's going to end up hurting his face, and he very earnestly explains back that he won't. We go through this a few times, me catching his face in my hand, and him pushing me away and saying "Don't DO that, Daddy." Finally I say, "Ok, it's your face," and pull my hand away. SMACK - right into the back of the couch with his little face.

Told ya so.