paddy says he needs a shit, so murphy says go in the bush. Paddy came out of the bush and said that he had no toliet paper, murphy said "don't you have a fiver? use that" Paddy says, ok, good idea.
5 minutes later, paddy comes out with shit all of him. Murphy says "Why have you got shit all over you... I thought you wiped your arse?" paddy said " What do you expect? It's hard to wipe your arse with three 1 pound coins, two 50ps, 4 twenties and 2 10ps!"