More accurately, it's a reference to an old riddle, but the writer purposefully didn't write the riddle, just some keywords that would invoke it, so instead of giving the answer to the riddle of "a child needs surgery from an accident, the surgeon says "I can't operate on him, he's my child.", but the father died in the accident, how can this be?", which would be ChatGPT's answer of "the surgeon is the mother", but instead, the person just asked why a surgeon would be a dick to some random kid, and ChatGPT helpfully provides that mothers are regularly jerks to their own kids.