A Buffalo Bills fan in a Josh Allen jersey lost his mind while fighting at a McDonald’s in Canada, as a viral clip on social media shows him throwing a chair at another fellow customer who had barked in his face and threatened to bite him.

The wild scene took place in Truro, Nova Scotia, after a man in a jacket and beanie got upset with a Golden Arches employee over a toy in his Happy Meal.

Footage from inside one of two McDonald’s locations in the small town, north of the border, shows the man threatening to sue to the multinational fast food chain, simply because he couldn’t get Pokémon cards with his order.

He also demanded a refund. The same guy and the manager proceeded to argue for a while, before the Allen fan intervened and went up to the counter to order some food.

But, when the man in the jacket wasn’t backing down over his spat for a change in his child menu’s item, both guys got heated.

‘Dude,’ the Allen fan said. ‘I will knock you the f*** out.’

After exchanging anything but pleasantries for just a few seconds, the Bills supporter eventually threw a punch, and then a fight followed.

The guys wrestled for a minute, with an armlock even on display.

What’s more is, that at one point, the man in Allen’s No. 17 jersey appeared to have a bite mark on his forehead.

When the guys eventually stopped attacking each other, the Bills fan seemed to be bleeding from around his eye.

The fight, though, didn’t end there… as both men got into another verbal altercation before the Allen fan threw a chair at his rival. He then took the guy’s backpack and stormed out of the building.

It’s unclear if any arrests were made after the incident.