Ah, but the stress of thinking you may have ingested caffeine is what keeps you up all night? I'm not buying it.

At a previous employer, I had the decency to post a sign above the coffeemaker that the orange handled pot signified nothing and that there was, in fact, no decaf brewed on the premises. I saw more than one visitor turn away from the coffeemaker without pouring a cup and felt that I had done my good deed for the day.