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Warning: this video contains language you may find offensive.

A video uploaded to YouTube purports to show an incident where a dad challenges his son to a fist fight in the backyard.

It didn’t go well for him.

RELATED: Bully pushes the wrong kid’s buttons and gets dropped twice.

The supposed father invites his own son to deck him in the face and calls him a “punk bitch.”

If you ask for a punch you’re going to get one, apparently.

Dad took quite a shot to the face.