One man learned a very valuable lesson after cheating on his girlfriend: If you're going to be unfaithful, don't leave your appendages vulnerable to a fiery attack.

After finding out that her man had slept with her co-worker, an unknown woman decided to get some payback - against the very body part he had strayed with.

While he was sleeping, she snuck up on him, with a camera running, and set the underwear he was wearing on fire.

Heated disagreement: After a woman learned that her boyfriend was cheating on her, she set out to get revenge

Hot stuff: While he was sleeping, she poured nail polish remover on the groin area of his underwear and set it on fire

In a 30-second clip shared by Elite Daily, the man is seen fast asleep in a white bed wearing just underwear and a pair of high socks.

A woman, presumably his girlfriend or wife, whose face cannot be seen, carefully and quietly removes the blanket that is partially covering him.

She then opens a bottle of nail polish remover and slowly pours some of the liquid over the groin area of his underwear.

Burning hatred: The man quickly woke up, screaming, and patted the fire out

Love hurts: The man moaned and the woman told him that she knew he was sleeping with her co-worker

With a long lighter, she sets the front of his underwear on fire. It only burns for about a second before her boyfriends jolts awake, screaming and batting at the flames.

'You cheating on me with my f***ing co-worker, you didn't think I was gonna find out?' she is heard saying as he rolls over and moans, holding his crotch.

'Get your s*** and get the f*** out,' she says, as he falls off the bed and stumbles off camera.

Bobbing for Apples: In Japan this year, one woman threw all of her boyfriend's apple products in the bath

Soak it in rice: She destroyed thousands of dollars worth of products to get revenge

She's certainly not the first scorned woman whose lover has faced hell this year. In April, a Japanese woman got revenge on her cheating boyfriend by destroying thousands of dollars worth of technology.

Furious over his infidelity, she tossed his iMac desktop computer, Mac laptop, iPhone, iPad, and other gadgets into a bathtub full of water.

The heartbroken man then shared images of his destroyed Apple collection on Twitter.

Try driving that: In February, pictures surfaces showing a car destroyed by a jilted wife

Outta here: The woman had smashed all of the glass and keyed the car with the message 'F*** you'

Major payback: She even ruined the inside, tearing up the seat and smashing the dashboard

And in February, pictures surfaced online showing aAudi R8 V - which can cost upwards of $115,900 - completely torn apart from the inside out.

After a woman reportedly learned that her husband was sneaking around, she smashed all his car's windows, the dashboard and speedometer, and the headlights and taillights.

She also tore up the leather seats and keyed the red paint on the exterior, leaving the message 'f*** you' with a smiley face on the totaled car's trunk.