Just before David Banner first changes into the Hulk in the subway train, Ellie Mendez is being bothered by Wilson Fisk's two henchmen, Benny and John. John calls Benny by his name, but Benny doesn't call John by his name until after David has changed into the Hulk. Near the finale, when Daredevil and David break into Fisk's building, David tells Daredevil he recognized the man from the subway and that "the other guy called him 'John'." Since David has no memory of his time at the Hulk, it would be impossible for David to remember hearing John called by his name when he was the Hulk.