12 Pranks To Play On An Angry Boyfriend
11. Pepper Undies
His Anger Level: 10/10
What To Do: Rub a really small (read: REALLY small) amount of pepper in the underwear that he'll most likely wear the next day. When he puts them on, he'll feel slightly hot under the collar.
Or under the waist band, more specifically.
Verdict: This is for a really mad woman.
It's a bit harsh and he will be EXTREMELY mad at you at first, but once he's cooled down he will forgive you and see the funny side. Also, make sure he's not going anywhere important the next day (like work), as it takes a while to set in.