I believe this safety thing is largely due to programming. Humans, I think, without the toxins and the constant stress, brainwashing and bombardment are generally NOT aggressive. While I'm sure there has always been the odd one (you can see it in livestock sometimes, or predator species), by and large I think rape,robberies, abuse, attacks, etc., are consequences of the system rather than human nature. And where we now have people watching men get stabbed to death in front of their kid (like happened in BC, Canada recently) with their cell phones out, not stopping eating as a guy bleeds out in front of them, we USED to have people leaping over fences to beat the crap out of the attacker and render them useless, so they could then help the victim.