They walk among us and they usually get caught.

Medford, Oregon (AP)
  Two burglars took silver ingots, rare coins, and other collectibles during a break in.  They also took a juice box from the fridge, shared the juice and left the box in the garage. Besides leaving a mess, they also left their DNA on the juice box. And that's why the phrase "dumb ass" was created.
Protect your beverages,
Rodger ;-P