Sick and Bell

Intro
The "Sick and Bell" plot is when a character gets injured or sick and must be watched over by one of their friends. At some point as they stay over, either they outlive their welcome and become a nuisance to their caretakers or it's shown that they were faking being hurt for so long or the entire time and could have left earlier.

Plot Sample
Guy gets into a terrible car accident he survives but the other driver does not. However, he's broken both his legs in the crash. He cannot afford to go to the hospital, so he waits until his friends Hugo and Ava come around and take him to his house so he can stay and heal. As his legs are broken, Guy can't walk around and get things on his own, so he is given a bell he rings whenever he needs certain services. At first, Guy uses his bell for practical reasons, like he wants Hugo to fetch a glass of water or Ava to make his lunch, but then as the days go on, Guy just uses the bell because he can. At this point, the plot can diverge down two paths. One is where Guy annoys Hugo and Ava to the point where they kick him out, and the other is where Guy accidentally shows Hugo or Ava that he was healthy for longer than he appeared to be, either that he healed some time ago or that he was never injured that badly in the first place (despite having his legs broken), thus resulting in Guy being kicked out of Hugo and Ava's house.