A man eating at the oft-controversial food chain Heart Attack Grill left the restaurant in an ambulance after suffering a heart attack.

Heart Attack Grill, which glorifies unhealthy eating and offers meals up to 8,000 calories, had a real-life heart attack in its Las Vegas location last weekend, according to a local television report. A man in his 40s was eating the “Triple Bypass Burger” when he started having chest pains and collapsed.

Each Heart Attack Grill has a medical theme, with waitresses dressed as nurses and all the food items having medical names, including “Flatliner Fries” and the Bypass Burgers. Owner Jon Basso even refers to himself as “Doctor.”

“I actually felt horrible for the gentleman because the tourists were taking photos of him as if it were some type of stunt. Even with our own morbid sense of humor, we would never pull a stunt like that,” Basso said.

Anyone who walks into Heart Attack Grill and weighs more than 350 pounds can eat for free. The restaurant doesn’t hold back on its menu, with the Quadruple Bypass Burger possessing 8,000 calories. Patrons who eat the entire thing are wheeled out of the restaurant in a wheelchair.

Basso said various health incidents have happened at the restaurant before, but this was the first actual heart attack.

A Heart Attack Grill opened its first Texas location last year in Dallas’ Historic West End, but it has since closed.

Watch amateur video of the heart attack incident: