There once ws a public house in Chelsea called The Thomas Crapper
//Thomas Crapper manufactured one of the first widely successful lines of flush toilets. Crapper did not invent the toilet, but he did develop the ballcock, an improved tank-filling mechanism still used in toilets today. Crapper’s name would become synonymous with the devices he sold (although the English word “crap” predates him by centuries), thanks in part to American servicemen stationed overseas during World War I. These doughboys, unfamiliar with the relatively new-fangled invention, referred to the toilets as “crappers”—due to the Crapper brand’s ubiquity in England and Franc—and brought the term back home with them after the war.//
Just Saying :-)