It is wrong to tamper with people's possessions
Omar was playing video games when his game controller broke.
Omar wants to get a new game controller.
Omar asks his roommate if he can borrow the money to get a new controller.
Omar opens his roommates safe to get the money to buy the controller.
Omar's roommate gives him the money, and he pays him back in a week.
Omar's roommate kicks him out and tells everyone that he is a thief.