"Let me introduce you to my hand cannon."

Source – A thief who pulled a gun on a store cashier left with his tail between his legs when the clerk – an Iraq War veteran – reacted quickly using his years of training. Jon Lewis Alexander, 54, had a gun pulled on him while at work, but within a split second he’d pulled out his own firearm and had it inside the thief’s mouth. The tense exchange took place in a store in Marionville, Missouri, and was caught on CCTV.

Hey, it right up there with Jules Winnfield taking the gun from Honey Bunny's boyfriend in the restaurant near the end of Pulp Fiction. 

Edit: Lots of people are saying this is fake. If it is, basically every news organization in the country has been fooled.