Boo

Sulley: Mike, this isn't Boo's door!Mike: "Boo"? What's "Boo"?Sulley: That's... what I decided to call her. Is there a problem?Mike: Sulley, you're not supposed to name it. Once you name it, you start getting attached to it! Now put that thing back where it came from, or so help me...! —Mike and Sulley Boo is a toddler who accidentally gets into the monster world in Monsters, Inc. "Boo!" —Boo Boo is a 2-year-old human toddler and among many of Randall's potential victims as part of the CEO's plan to forcibly extract...