Had the same thing at a nearby tractor dealership, only signed "Cheryl"!There's one over the john in each stall at out local club that reads "Gentlemen: it is not as long as you think it is, please stand closer!---Miss Vickie"
Could you be thinking about Thomas Crapper? The plumber who actually did not invent the toilet.The patent I believe was originally attributed to John C Crapper ......or maybe that was just part of the joke ....
Often seen in fire houses and other EMS frequented establishments as well as VFW and Foreign Legion clubs with a high percentage of Navy vets , "if your hose is too short or your pump too weak , take a step closer or you'll pee on your feet ."