working in the trades and before that spending sometime in Central America, it's pretty much a given that i have seen some pretty dramatic oop's and other sharpthing injuries.
That was the one where another's momentary lapse of common sense ended up in a something pretty darn painful that included something of mine, as usually I never loan out tools or sharps.
After seeing several nail injuries from power nailers, one severed finger from a power-washer, a traumatic amputation at the elbow, one six story fall(non fatal, but not on my crew either) and several others from a lot less high, one interface of Skilsaw with lower abdomen and upper leg, one example of what 14.7KV in a wet environment will do to a careless guy who drank his lunch, several pretty bad slices from tin work, a compound fracture of a femur and tib/fib on the same leg from a misstep on metal scaffolding and the newbie who tried to hand feed a small block of wood into a wood shaper despite being told not to touch the machinery until I had trained him, I am pretty much not phased anymore by the sight of blood. I used to keep pictures of some of the injuries in my glove box to show newb's who thought they knew everything and wondered why we were so concerned about training in people to do it our way, but I gave up after they just quit listening. Now I pretty much only hire people who have been in the trades long enough to know better.