The angry man can be seen confronting the vegan campaigners, who held up screens showing animal slaughter and used the megaphones to get their point across to shoppers.
One man took direct action against the protesters, grabbing a loudhailer from an activist named Ella Wild and breaking it on the ground before walking away.
Ms Wild posted a video of the incident on her Instagram, calling the shopper who retaliated "an angry customer".
Most of the commenters sided with the shopper, with one saying: "Good man glad someone done it".