@pleasesaybye If I could do it, I would set up some time paradox scenario where these anti-children assholes have to babysit a toddler version of themselves for a day. Perhaps they would somehow have an appearance different enough to tip them off (insert some sci-fi bullshit or whatever to accomplish this). And if they complain that the kid they had to babysit was a "hellspawn," you reveal to them that they were babysitting a past version of themselves. Then call them a retarded asshole.