And however high you fly, however much of the Right Stuff you have, a ring can get you - even on the ground.
In 1978, Armstrong severed the ring finger of his left hand when his wedding ring got stuck on a latch at his Ohio dairy farm. Rather than scream or run, Armstrong found his finger, iced it, drove to the hospital and had it reattached.
From Bloomberg's online obit of Neil Armstrong.
Although one has to say his reaction was most definitely The Right Stuff!!