A thief in Chicago managed to break halfway into a bar before he was stopped by his own stupidity: Instead of pushing, as the door's sign instructed, he spent several minutes pulling, eventually giving up and fleeing the scene.

"It's much funnier on the video, but the still shots show him pulling on the door. He could have pushed it," Joe Lin, the bar's owner, told DNA Info in Chicago.

"The gall of him breaking in in broad daylight. It's light out, people are jogging by. I want to let other businesses know," Lin added.

Police are investigating several other attempted break-ins in the area. No word if those were also spoiled by illiteracy.