When you have sex on a friends bed, then ejaculate on their pillow. When that friend goes to bed they get an ear full of cum. When confronted about the deed the ejaculator laughs like a French Person. "haw haw haw"
When you go over to someones house just to poop, and then leave. This person thinks you are coming over for a nice visit. Instead you leave them with a smelly bathroom.
Dude came over to my house as a Poop Guest. Needless to say he is no longer invited over.