On a hot day a thirsty man rushed into a restaurant, drank the largest glass of water he could find, and then sat down at a table.

“Would you like to see a menu?” asked the waitress.

“I’d like another glass of water like the one you had out front,” replied the still thirsty man.

“Hey, Harry!” the waitress shouted.  “I found the idiot who drank our aquarium!”