A black belt in taekwondo beat a Thai man after he tried to secretly film a woman in a public bathroom.

A man tried to film a woman in a stall at a restaurant in Chachoengsao district, Thailand.

The woman who works at the restaurant saw the phone in her stall and ran after the man outside.

The woman caught up to the 17-year-old when he tried to flee on his motorcycle. She began to beat him after she grabbed him.

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The woman does a backwards roll after the man knocks her down.

The woman threw more punches and ran back to the restaurant. She snatched the phone from the man and showed the evidence to her coworkers.

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The woman told the media that she used her martial arts skills to catch the man. She said that she began learning taekwondo when she was 7 years old.

The man told the woman that he filmed her because he was drunk. The 17-year-old hid his face and apologized to the media.

The woman said to be careful when using the public restroom.

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