Australia’s Mad Mex restaurant chain boasts an offering of the “world’s hottest sauce”. It’s designed as a chilli dip for only the bravest of diners, so who better to test the taste than one of the country’s fastest eaters? Isaac Harding-Davis tucked into five tacos loaded with the sauce, before incredibly gulping down three cups of the liquid. Later, he described the meal to Storyful as one of “the most painful experiences” he has ever endured! Credit: YouTube/Isaac H-D