Fueled By Optimism

A guy comes in with a gasoline canister.

Customer: “I was here this morning to get this filled but I ended up only needing half of the gas.”

Me: “Okay?”

Customer: “So I want a refund.”

Me: “Sir, we can’t do that. Once pumped, the gas is yours.”

Customer: “But I’m being reasonable! I only want half my money back!”

Oh, well, gee, why didn’t you say so?!