Well, I can imagine as humans evolved and were still quite tribal, this sort of anti-social behavior simply wouldn't be tolerated. If one was a threat to the tr

Well, I can imagine as humans evolved and were still quite tribal, this sort of anti-social behavior simply wouldn't be tolerated. If one was a threat to the tribe's safety and didn't fit in the social order, they were culled our ejected and eventually unable to survive on their own.