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The world's most deadly hamburger

"Doctor" Jon Basso thought "Nurse" Bridgett was kidding when she informed the Heart Attack Grill owner that a customer was suffering some medical difficulties in the dining room.

The situation was, in fact, as serious as a heart attack. FOX5 News Las Vegas reports that this past weekend, a man in his 40s began experiencing chest pains while consuming one of the restaurant's signature 6,000 calorie "Triple Bypass" burgers. Basso, who is not a medical professional, called 911, and EMTs and paramedics arrived on the scene quickly.

The customer - or "patient" as they are referred to at the restaurant, which moved from Chandler, Arizona to Las Vegas last October - is reportedly alive and recuperating. Sadly, that's not the case for the restaurant's 575-pound spokesman, who died last March at the age of 29.