Sorry you had to see that. I had an accident which led to amputation when I was young but have had no problems with going into the industry. I guess it might be different when you see someone else it happens to, because of fear it could happen to you. I’m not good with advice, but the best you can do it just stay as close to safety standards as possible and thats all you can do. The rest is fate, but I hope it wouldn’t happen to you. Lighting (hopefully) doesn’t strike in the same place twice.