MMA fighters should probably sit right at the top of the list of people you shouldn't try robbing. You shouldn't rob anyone, just to be clear, but definitely not anyone who beats people up for a living.
Too bad the would-be thieves in this video dipped out on that particular lesson, but they are definitely up to speed now.
The disaster starts when two guys on a motorcycle make the creepiest approach possible, trying to corner a woman who had just pulled into her driveway. The man on the back of the bike tries to snatch her purse when she gets out of her car, but quickly learns that he'd bit off a bit more than he could chew.
It's all over in a few seconds, but the lady got to leave an impression and keep her purse.