Not saying this is a "good" reason, but there are indeed people who have decided this is what they want. There's a man who wanted his hand/wrist cut off so tha

Not saying this is a "good" reason, but there are indeed people who have decided this is what they want. There's a man who wanted his hand/wrist cut off so that his arm could be grafted in a way that turns his arm into crab-like claws.