12 Pranks To Play On An Angry Boyfriend

9. I Moustache You A Question

His Anger Level: 5/10

What To Do: If he's a deep sleeper, then take a tip from Ross and Rachel in Friends and draw a moustache on him with a permanent marker. He won't notice until he reaches a mirror.

Verdict: These are best for the times you're on holiday, when a mirror isn't as easy to come by like it is at home. Perhaps while he's asleep in a bus, while camping or just taking an afternoon nap. 

Depending on how long it takes him to notice, he won't be THAT mad and you might make it out alive.