shit stick

believe it or not, in the Medieval ages when there was no Charmin, people would use a wooden stick to scrape away the feces after taking a dump. The stick would commonly be shared among people of the same household, or even the entire village. the term "wrong end of the shit stick" was coined because if you were to take a dump at night, and needed to grab the "stick", you had a chance of grabbing the wrong end of it.