Whenever anything went wrong, they always blamed Stanley's no-good-dirty-rotten-pig-stealing-great-great-grandfather.
Perception is how someone takes in information and judges/understands it. A lot of sitcoms will have this trope in them -- a situation that looks really suspect happens, and a spouse will walk in and assume the worst. Their perception is of infidelity or some sort of lie.
Perception will vary between people, because of how they view and interpret the things around them.
