Thursday night, an armed robber entered a Las Vegas Red Lobster and walked out with a cash register.

But he didn't get too far.

The suspect waved his gun around in the dining area, to the shock of terrified patrons. Unfortunately for the armed assailant, he wasn't the only one with a firearm.

According to reports, a family saw the robbery and followed the suspect. The father, who holds a concealed weapons permit, fired a shot into the air. This was enough to spook the suspect into dropping the cash register and fleeing.

The suspect is now in police custody.