(My dad used to work part time at a tool and garden supply store; this happened around the holidays.)

My dad: “Hello, sir, can I help you?”

Customer: “Yeah, I need and extension cord, but I need one with prongs on both ends.”

My dad: “We don’t sell them. It’s very dangerous to have copper exposed at both ends.”

Customer: “Well, I need one. Can’t you make me one?”

My dad: “No I can’t, sir. It would be extreamly dangerous and unethical for me to make that for you. What do you need this for? Maybe I can help you find something else.”

Customer: “I NEED AN EXTENSION WITH PRONGS ON BOTH ENDS!”

(My dad suddenly figures out why the guy needs a double pronged extension cord.)

My dad: “Let me guess, you put the Christmas lights up backwards?”

Customer: “Yeah…” *stomps off*