Funny Pun

There were three guys, Poo, Shut up and Manners. Poo fell off his bike, Manners went to help and Shut up rang the ambulance. The ambulance co-ordinate asked " what is your name?" 'SHUT UP.' "I'm sorry, what is your name?" 'SHUT UP!' "Wheres your manners!?!" 'Over there, picking up Poo.