It's rude to mess with other people's personal property.
Lacy is in the living room with her roommates laptop on the couch.
Lacy wants to lay down.
Lacy asks her roommate if she can move the laptop.
Lacy throws the laptop on the floor and it's stepped on.
Lacy's roommate moves the laptop and Lacy has a guilt free nap.
Lacy's roommate is angry and demands she replace the laptop.