It really doesn't matter if wall banging is efficient or not, it is violent and causes pain to the animal. It is not a proper euthanization method outlined by the American Veternary Association. I don't know what you mean by "nobody is going to solve PETA", that makes no sense AT ALL. PETA is a terrorist organization, and would like nothing better than to see reptiles banned in all 50 states. Your comments about hurling small animals into walls does nothing but give PETA ammo to use against this hobby, and give reptile owners everywhere a black eye.
Look at Detroit. You can't own a box turtle, or ANY reptile within the city. Why is that?
I have to wonder if someone like you preformed a senseless act of cruelty and set off the animal rights nuts...and a lawmaker listened.