In the year I've been back woodworking, as a GIMP, I've been remarkably safe UNTIL yesteday. I was drillng 5/8" holes in 3/4" MDF with a spade bit. Don't have a vise. Was holding it on the table with one hand and operating the 3/8" Drill motor with the other. Somehow the bit came through on an angle and bit into my hand below the thumb I'm on blood thinner (Warfarin) and Boy Howdy - Bled like the proverbail stuck pig. After a half hour with it still bleeding we called the local gendarmerie to haul my corpus to the ER. By the time they got there, it had finally stopped, after about fifty minutes bleeding pretty good. Not a good day.