You shouldn't make messes.
Eric has just cooked dinner for himself, dishes everywhere and his roommate John just got home.
Eric wants to go to sleep early.
Eric quickly washes his dishes and heads upstairs to eat and sleep.
Eric goes upstairs to his room with his food without washing anything and eats and goes to bed.
John has clean dishes to cook with and thinks Eric cares about him.
John doesn't have any clean dishes to cook with and is very angry at Eric.