To answer Viking's question, I've catapulted George. Actually, I didn't mean to. He just stumbled onto it when I was trying to escape. He catapults just like a buddy does. However, when he hits the ground right next to you, he continues to attack as normal.
I actually like the concept of George. I agree with the post above, that he should only attack the person that shot him, but hey, it may or may not get changed. I like the fact that he discourages camping, and I like his general speed and attitude. I don't like the fact that you waste all your ammo on him just to get a perk and a weapon, as this is counter-productive in getting more ammo/points. That's just my opinion, though.