We might make million dollar mistakes, but it’s not likely anybody dies from it.

I had a coworker who got a gig writing PDA software for a remote-controlled baseball machine. He was to this day the most incompetent programmer I've ever met personally; his biggest mistake on this project was firing a 120 mph knuckleball (a pitch with no spin so its flight path is incredibly erratic) a foot over a 12-year-old kid's head. This was the only time in my 25-year career that I had to physically restrain someone (the client, in this case) to prevent a fist fight. I replaced my coworker on the project after this and you can bet I took testing a little bit more seriously than he did.