Okay, all you vain people that would forgo 40 IQ points to keep your face scar-free... Maybe smarts didn't triumph over looks, but how about health?
"Would you have one of your fingers surgically removed if it somehow guaranteed immunity from all major diseases."
Obviously, since I would take the scar for the more wrinkly brain in a heartbeat, I would also lose the finger to ward off disease. Yes, I could still hit by a bus...but so could someone that kept the finger...
(Questions taken from Gregory Stock's The Book of Questions)