You are literally chasing your tail trying to relieve your sudden sexual urges. You find yourself in the living room naked humping the sofa like a real dog, when you hear someone at the door. Oh, please be locked, you think, as you continue to hump the sofa. You close your eyes, and are aware of the sound of a key in the lock. Then the door swings open and you are caught red cocked with your tail in the air.