How badass/scary is Dean McMahon? On one occasion, when trying to shut down a zany dorm party orchestrated by Zack, she storms into a room that has an angry guard dog in it. The large dog growls and barks at her, and prepares to pounce. McMahon simply gives it an icy glare and says "Dont. Even. Think about it." The guard dog covers its face and begins whimpering. It's still in this position when she leaves the room.