This is why you shouldn't go skiing for the weekend, forgetting to lock your dorm room's door. Hit play or go to Link [YouTube].
For more college prank, check out this article from The Chronicle of Higher Education:
A Chronicle employee — OK, fine, it was me — spent hours sifting the semi-funny from the truly idiotic in order to bring you five of the best college prank videos. While none of these pranks involve duct tape or shaving cream, they are all pretty juvenile.
Link - Thanks Daniel Kim!