Interesting video on torch flashback and prevention

Great videos.

I put arrestors on my torches quite a few years ago, probably when I became aware of their existence.

We never had anything like that in my high school welding shop, and when I purchased my (still have them!) torches in 1972, the subject never came up, so I assume they weren't around then either.

I went to a vocational high school and part of the machine tools program included a short welding course, just enough to get you going. My welding shop teacher died over Christmas vacation and the guy they brought in to replace him died in a motorcycle accident (ran over while sitting at a light). I've always thought of taking a class in MIG (didn't have it back then) but given the track record, I haven't wanted to take the chance of going 3 for 3.