Coworker #1: I was putting gas in the car and the nozzle just sprayed out of the gas tank and all over me. If someone were to light a match, I'd go up in flames. (disappears for a short time to change into a pair of jeans)
Coworker #2, not having heard the previous story: Oh my gosh, are you wearing jeans?
Coworker #1: Yep.
Coworker #2: Why?
(coworker #1 proceeds to retell the gas-spilling story)
Coworker #2: Oh my gosh, do your other pants smell like gas?
Coworker #1, very seriously: Nope, they smell like lemons.