You should always share.
Mikk is asked by his roommate if he can borrow Mikk’s extra laptop that he likes but doesn't use much.
Mikk doesn't want the laptop damaged.
Mikk lends the laptop and lets the roommate know to be careful.
Mikk doesn't let his roommate borrow it.
Mikk opens up and starts sharing more.
His roommate is disgusted and their relationship becomes strained.