Felix wants to come in circulates online as a short, standalone soundboard clip rather than a widely documented scene from a film or television show, so its appeal comes from the situation it describes rather than a famous source. Creators reuse it because the request is instantly understandable, especially when paired with a door knocking sound, a pet at a threshold, or a friend turning up unannounced. That everyday setup has kept it useful for reaction edits, short comedy sketches, and playful captions where a simple arrival becomes the joke.