It's so weird to me that the top response is asking for context, and we're not 3 replies down and nobody has correctly quoted the joke.
"A young man is injured in a car accident. The doctor says, 'this is my son' but the doctor is not, in fact, the young man's father - how is this possible."
You left own "not his father" and therefore your version isn't a riddle.
It's from pre-Internet era so there's no real "correct" version, it spread by word of mouth.
The more elaborate version includes the father being killed, an ambulance, immediate surgery to play on your (rightful) bias that an emergency surgeon is a man.
It doesn't have "not his father" and is carefully written to avoid pronouns to avoid putting you on that it's about gender.
Of course being operated on in the emergency room by a woman should be unthinkable - who tf would want that.
It's so weird to me that the top response is asking for context, and we're not 3 replies down and nobody has correctly quoted the joke.
"A young man is injured in a car accident. The doctor says, 'this is my son' but the doctor is not, in fact, the young man's father - how is this possible."
You left own "not his father" and therefore your version isn't a riddle.
It's from pre-Internet era so there's no real "correct" version, it spread by word of mouth.
The more elaborate version includes the father being killed, an ambulance, immediate surgery to play on your (rightful) bias that an emergency surgeon is a man.
It doesn't have "not his father" and is carefully written to avoid pronouns to avoid putting you on that it's about gender.
Of course being operated on in the emergency room by a woman should be unthinkable - who tf would want that.