2) When he let one chef celebrate prematurely
During the audition process for MasterChef season 3, the judges had a lot of chaff to wade through. One contestant in particular, a lady who presented the eminent chefs with frog leg egg foo young as her signature dish, got perhaps a bit too excited. After tasting the dish, Ramsay uttered “Congratulations!” upon which the contestant let out a celebratory cry of “THANK YOUUUU!”. Unfortunately for the contestant, she didn’t listen to the rest of Gordon’s sentence: “…on the worst dish in this competition so far.” That one’s definitely gonna leave a mark.