Only 5.3% of US welders are women. After years as a professor, I became one

I once met a welder who was told upon entering the field, “You’re going to meet a lot of serial killers in this line of work.” He thought his boss was just messing with him, but it turned out to be prophetic. He met something like 5 convicted serial killers in 20 years as a welder. Welding is solitary work that is itinerant. Some of the stories that guy told me would turn your stomach. Anyway— totally off topic, but I thought it was interesting.

I don't know about serial killers, normally they are in prison if known. But felons, yes definitely. A criminal record is not disqualifying in most trades and unions.

My experience w/ metal workers of all types holds true to this. I think it's the fumes.

That theory does make sense. Half of serial killers have had traumatic brain injuries -- this would just be more of the same.

Seconded. Hiring Machinists at work we went through a few ex cons and wound up hiring one for a few years which turned out to be a nightmare. Now we have a hippy in a band who makes inappropriate comments. You cant win.

Meaning was probably that the coworkers were later discovered and convicted of multiple murders, not working with felon status. :)