You'd been in a fight with your classmate. You had a bloody lip and your knuckles were bruised from the fight. Eventually, your oponent gives up and walks away. You grin with satisfaction and walk towards your locker, not bothering cleaning yourself up.

Suddenly two strong arms grab you by the shoulders and turn you around.

You idiot. What were you thinking!?

Nathaniel notices you lip and knuckles.

Idiot.