Nothing brings two (or three) people together like some good-natured conflict.

Honestly, what would facilitate bonding more than covering everything on a roommate’s desk with sticky notes or making their computer background a full screen picture of yourself doing an impression of Heath Ledger’s Joker. Nothing says “I’m glad we’re roomies” like removing the bed slats from the bunk of someone prone to jumping on the bed. Here are some fun, non-destructive ideas for your own roommate bonding experience.

In memory of those complicated sliding square puzzles, prepare for a crazy morning after you set up this prank:

It’s simple: take your roommate’s belongings and place them where they do not belong. Put books in their shoe rack. Stack shoes in their underwear drawer. Fold wardrobe items and layer in desk drawers. Hang up underwear in their closet. And so on, and so forth. No matter what your roommate’s sleeping habits, the full effect of this necessitates that the victim is unaware of the prank until the morning, so plan carefully.The best kind of reaction happens when their toothbrush is not where they expect it to be in the morning.

Another gem prank that preys on the semi-consciousness of early morning is the “nuclear warfare drill.” Place an obnoxious alarm clock in the air conditioning unit of your room and set it for a god-forsaken hour like three in the morning. Two things could happen: your roommate will either wake up and be confused or stay asleep like a hibernating bear. If the first, your continuing of the prank would be to act like it must be some kind of drill and try to get your roommate out of the room and into the parking lot as unprepared as possible. If the second, you must amp up the acting and energy and convince them they must exit the building immediately. In either of these cases, you can “go back to get something” and leave them outside.

The most common cause of fear is the “unknown” and that common fear is the core of the following prank. Write up a series of notes, beginning with a riddle that seems to hint towards the kidnapping of some “essential” object of theirs. The main trick is to be believable yet ambiguous. Intentionally place these false hints in various places where they might be discovered in the course of a few days. When your roommate finally stresses out and tries to figure out the riddles instead of writing a paper due the next day you have succeeded. Then you can let them know there is no stolen object. Before you reveal the prank, make sure you have a last will and testament written up, as the fatality rate on this prank is pretty high.

Other ideas:
– Fill the room waist high with small balloons with a pinch of glitter inside of them.
– Replace the substance of their toiletries; including putting hand soap in their toothpaste and filling their shampoo with like-colored Jell-o.
– If they love the beach: put seashells under their fitted sheet, sand under their regular sheet and covertly stuff their pillow with palm fronds