In issue 2 of the original Defenders our heroes are in the Himalayas all of three panels when the Hulk starts breaking this shit out:
So what the hell is going on here? Is this the result of years of being constantly reminded of his (freakish) green skin? Is Bruce Banner a closet racist, and what we see here is the Hulk as Banner's unmitigated id? Is writer Steve Englehart off his rocker?
Fathoming this whole situation is complicated all the more by the odd coloring Asians could end up back in the day.