Everyone wants to be polite, especially to a guest in your home. Unfortunately, courtesy is not always reciprocated and, to your horror, you can find yourself trapped with The Thing That Wouldn't Leave.
Many a Dom Com has used the set-up of a house guest that simply will not leave. The put upon homeowners must find a way to remove this intruder without being rude, but no matter how many times [...] [tvtropes.org]