In the US, certain northeast Native American tribes have a long history of working on skyscraper construction, going back to -- well, to the earliest days of steel skyscrapers. It has sometimes even been claimed that fear of heights is "genetically hardwired," and these Indians lack this "normal human instinct" because they carry some sort of recessive mutant gene not found in other ethnic groups! But, apparently, it's
just testosterone and machismo:
"In 1907 96 men were killed when a span of the Quebec Bridge collapsed during construction; 35 of them were Indians from Kahnawake. The dead were buried in the Kahnawake cemetery under crosses made of steel beams. Your average construction worker might have decided it was time to go into a safer line of work, but not the Mohawks. From that day forward every young male on the reservation was convinced that risking your neck on high steel was the coolest calling this world could offer."
And what self-respecting young Russian man would want to admit that he has smaller balls than an Iroquois?