A Chicago area thief had attempt robbery thwarted all thanks to him being dumber than the door.

I would-be thief pried the lock off the door and followed up by removing the safety guard doorstop. At this point he thinks it's clear sailing but not so much was the case.

In the video below you can see the thief pulling hard on the door but not able to get it open. After several minutes of attempting to get in, the thief admits defeat and leaves.

By the way, the sign on the door says 'Push.'