Guy 1: "Tell me a bad pun." Guy 2: "Alright. What's the difference between a tuna fish, a piano, and a tube of glue?" Guy 1: "Ok, that last one was random as heck. What is the difference?" Guy 2: "You can tuna a piano, but you can't piano a tuna." Guy 1: "Ok, where does the glue come in?" Guy 2: "Ah, I knew you'd get stuck on that."