A Guy goes into a bar with his pet octopus and say's 'I bet $50 that no one here has a musical instrument that this octopus can't play'.

The people in the bar look around and someone fetches out an old guitar. The octopus has a look, picks it up, tunes up the strings and starts playing the guitar. The octopus's owner pockets the fifty bucks. Next guy comes up with a trumpet, octopus takes the horn, loosens up the keys, licks it's lips and starts playing a jazz solo. The guy hands over another fifty bucks to the octopus's owner.

The bar owner has been watching all this and disappears out back, coming back a few moments later with a set
of bagpipes under his arm. He puts them on the bar and say's to the guy and his octopus, 'now if your octopus can play that I'll give you a hundred dollars'.

The octopus takes a look at the bagpipes, lifts it up, turns it over, has another look from another angle. Puzzled, the octopus's owner comes up and says 'What are you pissing around for ? Hurry up and play the damn thing !'

The octopus says 'Play it ? If I can work out how to get it's pyjama's off I'm gonna fuck it !'