In pro wrestling, a “receipt” is an ass-kicking that you brought upon yourself. It comes from the cardinal rule of the business — always take care of your opponent. If you fail to do that, the repercussions will fall squarely on your head (often via chair shot).

The Undertaker recently explained the purpose of giving receipts in wrestling. “I’m pretty patient [when it comes to giving a receipt]. It all depends on intent,” the Deadman said. “Some guys just work very snug. I pride myself on my punches. I feel like I can make it look like I can take your head off and not touch you. Every once in a while one gets away from me… I’d much rather it be there than it miss. It ain’t ballet.”

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But not all receipts come after a stiff shot gets away. Sometimes a performer delivers a receipt to protect themselves from an unsafe worker, like when Taker had to shut down Giant Gonzalez at Wrestlemania IX. “[Gonzalez] cracks me right across the back of my neck, and then once I get back the feeling in my little fingers… I flipped,” Taker recalled on his podcast. “I turned around and just started wailing on him.”

Let’s go back to classic WWE, the old territories, and even a battle between monsters in Japan. Here are 10 of the most infamous receipts in pro wrestling history.