A man is out, taking his dog for a walk, he sees a friend and they walk together when suddenly the dog starts pulling on his lead wanting to cross the road, the friend asks what’s up with the dog, the dogs owner says he’s seen the wall over there and wants a wee, they cross the road and when the dog gets to the wall he goes on to his back legs and rests his front legs on top of the wall and has a wee, the friend says wow how long has he done that, the dogs owner replies ever since a wall fell on him.