How dump to you have to be to be a criminal? These to morons decided to rob a store. As they were doing so, the front gate was dropped and they were locked inside. If it wasn't bad enough that they were doing this during the day, the people outside started to take notice. Eventually the crowd started watching and taking videos for themselves.
When life gets real, instincts tend to kick in and we are capable of a lot of things. This store clerk was minding his own business and working. While helping two other customers, in walks a guy with a gun trying to rob the store. After a few seconds, you can see the clerk spring into action.