It isn't about hurting anyone, it is about having some pride as a trickster/troll. You played a good prank, your roommate figured it out. Time to move on. Anyon

It isn't about hurting anyone, it is about having some pride as a trickster/troll. You played a good prank, your roommate figured it out. Time to move on. Anyone can lie through their teeth, that's not clever at that point.