A man walked into a bar with his pet octopus and announced to everyone that his octopus could play any musical instrument in the world. The bartender, intrigued, asked him to prove it.
So the man pulls out a piano from his bag, sets it up on the bar, and instructs his octopus to play. To everyone's amazement, the octopus starts playing the most beautiful piece of music they had ever heard.
Next, the man pulls out a guitar from his bag and instructs his octopus to play. Again, the octopus starts strumming away, playing like a professional guitarist.
The bartender, now really impressed, asks if there's anything else the octopus can play. The man replies, "Well, there is one instrument that my octopus hasn't mastered yet."
Intrigued, the bartender asks, "What instrument is that?"
The man grins and says, "The bagpipes."
The bartender hands the man a set of bagpipes and the octopus scuttles over, tentacles wriggling as it tries to figure out how to play the instrument. The octopus blows into the bag, squeezes the pipes, and miraculously, music starts to come out.
But it's not pleasant. It's a loud, screechy, ear-piercing sound that makes everyone in the bar cover their ears and wince in pain.
The bartender shouts over the noise, "I thought you said your octopus could play any musical instrument! That sounds terrible!"
The man shrugs and replies, "Well, he may not be great at the bagpipes, but give him a few drinks and he'll sound like a symphony on any other instrument!"