Did you put the mat on the toilet seat when using a public loo to protect your dangly bits? Ideal for when there was only one "long drop" toilet which was shared between the whole terrace and the seats were flat wooden platforms.Stanley wrote:You are right in that it's black and made of rubber Glo but a bit small for a mud-flap. It's a bit more personal than that!
I'm only guessing after reading Stanley's clue.