Pranking.

For this prank to work, you'll need :
-To live with another person that goes to work before you.
-A lot of mugs.

Step 1: Wake up at least twenty/thirdy minutes before the one you live with.
Step 2: Take all the mugs you have and put them In front of the Front door. (Outside of the house)
Step 3: Start to drink (coffee or something else) In a small bowl.
Step 4: When the one you live with is awake and about to go outside, tell them "Be carfull, it's muggy outside."

I did it on my mother and I laughed so hard at her reaction.