You shouldn't steal your roommate's food.
Jack is really hungry, and the only food in the fridge is his roommate's leftover pasta.
Jack needs to decide whether to eat the pasta.
Jack leaves the pasta alone and orders a pizza instead.
Jack eats all of the pasta before his roommate is able to come back home.
Jack's roommate is able to eat his pasta once he comes home.
Jack's roommate finds out and has trouble trusting Jack after it.