Policeman walking along the road encounters two men, one lying face down on the pavement with his trousers around his ankles, the other kneeling next to him with a finger up his mate's backside
"'Allo, 'allo, 'allo, what are you tow doing here?" asks the policeman.
"My mate's drunk and I'm trying to make him sick" says the kneeling man
"You'll never make him sick like that", says the bobby
"I will when I put my finger in his mouth", came the reply
Jim Carroll