20. Secret admirer
Even if you think Shia LaBeouf is a total dreamer hiding behind your curtain when you least expect him to trigger some well-placed yelps? This rather simple but disturbing roommate throng required a color printer and a two-sided tape carefully concealed to complete the illusion.
The beauty of this prank is that there is nothing frightening about the clipping hidden behind the window, so that at first glance it may seem harmless. It's just a cute picture of the former Disney Channel star. But if you do not expect to see him, the average person will inevitably jump out of your skin.
If you think that's weird, just wait until you see the incredible roommate jokes in front of you.