It really depends on your personality, but some people find guests to their homes who raid their fridges as something rude. To be safe and sure if you’re a visitor, just make sure you ask permission before opening anyone’s fridge. As for the more paranoid home owners, there is always the Fridge Patrol. This rather rotund looking cop with the customary donut in one hand will go into action the moment the fridge door is opened, where the flashlight will shine and attempt to halt the intruder with one of five remarks, including “Get back! You’re going down!” He is powered by a trio of AAA batteries, and stands proud at 8″ tall. The Fridge Patrol is pretty cheap to implement for a mere $19.95.