In order to semi-spruce up the downstairs bathroom, I ordered two monogrammed hand towels each with a fancy black "P" (the first letter of our last name) on them, in case there was any doubt as to who would be cleaning up after the guest peed.
I hung them over the toilet in all their starched glory. I turned and walked back in to see the effect from a first-timers perspective expecting to be blown away by the subtle class of monogrammed towels.
It was then I saw the error: P P
Even my 2 year old didn't miss the humor in that.