Oh, where to start? I suppose it's best if I just toss out a few random thoughts here and there....
While I appreciate your rage, I have to look at this in context...
Let's take a 'cheap as possible" GC, contractors providing as little as possible in terms of equipment, as well as bringing in help that has no right to work, low pay ... it's actually a surprise that more of this doesn't happen.
On the flip side ... how often have we had to improvise a workbench? I'm actually surprised that no one offers a job box that is specifically designed to double as a workbench. Or, for that matter, with seat cushions!
I note a real increase in damage to equipment when:
A) Equipment is seen as 'company" rather than "personal" gear; or,
B) Job site relations are poor.
I've given up understanding human nature. It seem a man will prefer to be a thief, rather than a beggar ... and will set aside all scruples rather than be laughed at.
Along with that goes the thought "Why should I be held accountable to every Tom, Dick, and Harry ... when no one feels accountable to me?"
I was once the only non-Union contractor on a job. At this job, the site manager was there, scheduling was done, trades co-ordinated, contractors showed up with all necessary gear, and the "help" was actually there to work! A lot of jobs need to learn from those guys....
Well, I've rambled enough. Sorry about the box; I've seen enough of the welders' art to be sure a repair can be made, without much fuss.