" your mother isn't here, clean up after yourself "

That's what my parents always say. Yet, I worked in a fast food restaurant as a teen and sometimes it gets too damn busy to do it all. I always pick up after myself.

Plus generally in fast food places they have trashcans and don't bring your food to you. Most of the work is done behind the counter because they're supposed to be giving you food. If you wanted full service go to a restaurant where you have someone who's supposed to take care of all of that instead of leaving a message that no one has time to clean until the night