Mr. dB said:
That's "Amputation Fetish". These people belong in a mental hospital.
A lot of amputation fetishists go to Mexico where they are able to find surgeons who will do their bidding, for a price. I read about one fellow, whose day job was as a psychologist counselling children, who was fixated on the idea that one of his legs needed to be taken off. He had enabled several other fellow amputation fetishists to find surgeons, sometimes performing the surgeries in hotel rooms, but couldn't yet find someone who would amputate his leg just below the hip. And this guy is a licensed mental health practitioner.
It's a screwy world out there.