I expect that if I am willing to be the father of the beast from the pit then I would more than gladly offer up my paltry life, my heart beat, if the child should will it to be so; or even if he happened to throw his rattle a little too hard towards my head.
Of course, if I HAD to discipline him, then I could adopt some kind of disguise to make it look like someone else was doing it. Then he'd still love me.
I wonder if some training would not be in order to guide this child on the right path. Perhaps a costume fitting of the antichrist- oh, I don't know, something with scales and spikes. Then perhaps his cot and room could be fashioned in similar ways: hanging barbie doll mobile, a night light that simulates occasional streaks of nightmarish lightning, a closet that is rigged to creak and its door open at regular intervals. A small model of a city could be built to be trodden on. The world is his oyster.