I actually just saw a movie where that happened. Time of the Gypsies. You can actually watch all parts of it on YouTube, and there's totally a mad amount of nudity in it as well and child porn. No lie. Weird that it's on YouTube. Anyways, point is, in one of the last two parts of the film, a henchman goes to take a shit in the outhouse and the hero of the story ends up going in and stabbing him in the stomach while the henchman is taking a shit reading the paper.