" The problem is not a small group of crazy, homicidal, incompetent doctors going around causing havoc. Medical errors follow a normal bell-shaped distribution.14 They occur most often not when clinicians get bored or lazy or malign, but when they are going about their business with the diligence and concern you would expect from the medical profession. "

― Matthew Syed , Black Box Thinking: Why Some People Never Learn from Their Mistakes - But Some Do