>>14241363Psychiatry. Ask a psychiatrist what qualifies someone as crazy, and they will say words to the effect of "holding delusional beliefs which cause the patient to harm themselves or others".
Meanwhile, about 70% of newborn males get their pp clipped, typically without proper anesthesia, because 3800 years ago a goat herder allegedly heard a voice in his head that told him that he should do it, and not one of the parents or surgeons involved has ever been diagnosed with a mental illness because of it.