Dim Witted And Off The Deep End, Part 4

(An older visitor and his wife approach me at a public swimming pool.)

Visitor: “How deep is your pool?”

Me: “It ranges from 3 feet to 12 feet.”

Visitor: “So the water surface isn’t level?!”

Me: “No, the water gradually gets deeper, but the surface of the water stays level.”

Visitor: “That can’t be right! If the water is deeper in some areas than others, the surface can’t be level!”

(Unsure of how to explain it without sounding patronizing, I tell him to just go look at the water. A few minutes later, he leaves without a word. His wife follows.)

Visitor’s Wife: *laughing* “I think he gets it now…”