For your roomy, soon to be ex-girlfriend, or a friend with a sense of humor:
1. Shopping Cart Trap.

2. Make People Scream at Walmart

3. Mentos and Diet Coke prank for all girls in the Office (proven by Mythbusters to make volcano. This person must really like, or you must really want to hate you).

4. Broken Mouse Prank

5. Occupy Bathroom. All bathrooms.
6. Make Some Real Loafers.

7. Fill all chocolate eggs and bunnies with mustard, or if you are really cruel, Sriracha HOT SAUCE.
IMAGE: @DUSTY_PAW ON INSTAGRAM