John is at the doctor recieving just a general checkup when he says to the doctor 'hey doc, did you know i can sing out of my arse?'.
'Oh really?'
says the doc 'show me then'.
The man gets up in a squating position, pulls down his pants and does a big shit all over the chair.
'What was that for?!?'
questions the doctor, quite disgusted 'oh'
says the man 'i was just clearing my throat'
Next Joke: A guy had been feeling down for so long that he finally decided to seek the aid of a psychiatrist