A loudmouth teenager quickly realized he’d made a huge mistake confronting another youth at a skate park when fists and feet started flying.

The video begins with trouble already brewing as a tall kid in a black t-shirt and his friend in red confront a smaller kid in a blue-shirt and his blonde-haired friend.

Hey man, we got two on two, someone among the group of skaters that are gathered there says, suggesting that a fight may be in the works.

“I’m not even 16, the nervous sounding youth in the blue-shirt is heard saying.

How old are you? You think I’m older? red-shirt asks, then goes on to claim that he’s only 15.

How old are you? black-shirt shouts angrily at the blonde-haired kid, who’s been sticking up for his friend.

Well, yeah, I’m 17, blonde replies.

At that stage blue-shirt backs away to a near-by fence with his arms folded and his head lowered, clearly uncomfortable with what’s happening, and relieved that the attention has been taken of him for a moment.

One year difference, big f*ckin’ whoop! black-shirt exclaims in an over-exaggerated manner.

Why are you acting like such a badass? Blonde asks the bully. Why don’t you get the f*ck out of here?

Black-shirt isn’t backing down though and keeps acting the fool, and it’s at that stage that Blonde again tells him to leave and shoves him.

Black-shirt shoves back and that sparks off the fight, with Blonde suddenly leaping forward with a one-two that knocks the loudmouth backwards.

Do something, blonde tells him.

You do something, black-shirt replies and in short order receives a slap in the face.

I just did, Blonde says. Now you do something.

The two youths size each other up for a moment then land strikes at the same time, with black-shirt connecting with a punch at the same time as blonde hits him with a leg kick.

Blonde then steps things up a gear, showing beyond any doubt that he has a martial arts background as he neatly lands a spinning back kick to the midsection of his rival.

He immediately follows up with a head kick, then as black-shirt turns his back he picks him up and slams him down onto the concrete, knocking him out cold.

It’s a brutal finish, and a good example of how acting tough can get a would-be bully into serious trouble when they run across someone who’s willing to call their bluff.