Quote from Tim in Alarmed by Burglars
Tim: Once you use it, you'll find this very easy to use. Jill: OK. What if the motion sensors are on, but I want to go downstairs to get something to eat? Tim: Um... Well, you can't. Jill: I can't? What am I supposed to do? Tim: What are you supposed to do? [checks the manual] Oh. Keep a ham by the bed. [laughs]