What is the difference between a guitar and a fish?
You can't tuna fish.
What is the difference between a guitar and a fish?
You can't tuna fish.
Alright, listen up, smarty pants! This is a play on words. See, "tune a" sounds like "tuna." You tune a guitar, but you can't "tuna" a fish... because "tuna" is also a kind of fish, duh! And you? You probably think water is just wet air, don't you?