Pearls Before Swine by Stephan Pastis for September 25, 2010
Pig says, "Hey, Rat? I'd like you to meet my friend, Foofy the Flying Fish." Rat says, "Flying Fish can't really fly. They're just called that because they leap out of the water, giving the illusion of flight." Pig says, "Foofy didn't need ot know that."