Front door sign banning guns apparently didn't stop three armed robbers from taking their guns into this restaurant

The problem isn't just that the criminals ignored the crime, the problem is that it probably created an incentive for them to pick that place to rob.  Knowing that the victims are defenseless makes it more attractive for criminals to pick that as their target.  From ABC TV Channel 11 in Durham, North Carolina:

Police are searching for three suspects involved in an armed robbery at Durham's newly-opened barbecue restaurant, The Pit, at 321 W. Geer Street. 

Authorities said just before 9 p.m. Sunday, three men wearing hoodies entered the restaurant through the back doors with pistols, and forced several staff members to lie on the floor. 

The bandits assaulted two employees during the crime, but they were not seriously injured. 

"They're doing great," restaurant owner Greg Hatem said. "One of them actually went to the hospital and was released. They took a good look at him, he's fine." 

Hatem also said there were a few patrons in the dining room while the robbery was happening in the kitchen area. Workers were able to ask them to leave, and got them out safely through the front door. . . .

NCGunBlog is the source of the picture of the restaurant's front door. 

Thanks to Tony Troglio for providing this information.