“RADIAL NEUROPATHY Common causes include sleeping with the arm slung over a park bench (“Saturday night palsy”), compression in the axilla by improper crutch use (“crutch palsy”), or fracture of the humerus damaging the nerve as it travels in the spiral groove.”

That’s from the neuroanatomy book. You know, if I were a doctor, it’d never occur to me to ask a patient if they came in with radial neuropathy, “Did you sleep with your arm slung over a park bench last night?”

I just would not think of that.