07/18/2014 02:32 EDT | Updated 07/18/2014 02:59 EDT

Waitress Eats Cockroach On Man's Plate, Ends Argument In Stunning Fashion (VIDEO)

There's an old adage if you're working in the restaurant industry: the customer is always right.

That's unless you eat a cockroach off their plate. Then the customer's just plain wrong.

It's how Jin Kuo, a waitress at the Jinsha Era Plaza hotel restaurant in Chengdu, China, ended an argument with one disgruntled customer during her shift.

The 39-year-old restaurant worker was caught on camera in a heated discussion with Zhang Yen, a businessman who had ordered a salad at the eatery.

See, there was an extra addition to Yen's salad that was bugging him: a dead cockroach. When Yen confronted Kuo, she insisted finding roaches in food was fairly common and the incident wasn't a big deal.

"No matter which restaurant you go to, you will always find cockroaches in the food. It is very normal," Kuo said, according to the Daily Mail.

But Yen wasn't buying Kuo's story, insisting if it wasn't a big deal, she should eat it.

And that's exactly what she did.

To see what happened next after Kuo's shocking move, watch the video above.