I knew a gal that worked out religiously, took some form of martial arts training, and was generally a take-no-shit kinda girl. She fully believed she could take a dude in a real live street fight.
We're at the bar one weekend and she's talking to a mutual friend about whatever, and the subject of male-vs-female fisticuffs came up and she was arguing that she'd be able to take most guys. Dude says "Tell ya what, I'll bet you fifty bucks I can take your best punch to the face." Normally she isn't the type to take that challenge but she had been drinking the perfect amount to accept.
She stands up, he gets ready, and she unleashes a damn decent punch to his jaw. Nice form, good follow-through, finished in a ready stance. You could tell she'd had training.
Dude's head goes to the side a little and he says "Told you I could take it" and I could see the disappointment wash over her as she realized that she was wrong. Like, her entire persona was built on being tougher than most dudes and a random sized guy with no real fight experience beyond backing up his loud mouth took her best shot and finished his beer.
Run away.