When I was 20 or so, I worked "bar security" dowtown Windsor(directly across the border from Detroit). I got stabbed in the hand with a steak knife. I remember feeling like I was going to pass out. Until one of the paramedics looked me in the eye and said "It is just an injury to your hand, I've seen a guy wandering from a wreck without an arm from the elbow down. You'll be fine." I don't know why, but that snapped me out of it. I was able to dettach myself from the pain, thinking about the dude with one arm.