I occasionally used an Oxford area based mower sales/spares/repairer for quickly needed spares for the various odd machines they then were agents for, which I forget now.
I rang first before setting out to hopefully pick up some parts I needed but I'd forgotten to note the exact model in question, the parts manager took me through to the workshop where some stripped out and also completed similar machines were stored, I had to stifle a laugh when I noticed the three mechanics all being equipped with an old vacuum cleaner each, but not a compressor in sight! Parts chap said the vacuums worked well and were safer!
I pressed him a little whereupon he admitted that the 'elf and safey' had been around, or more correctly had made a 'lightening raid' and found the compressor leaking and half full of water etc., so it was use the vacuums, or be shut down.
About ten years ago I had an eighteen year old girl threaten to 'shut me down' if I didn't remove a floor mounted grinder/wire brush machine because I'd removed a guard, I employed no one and couldn't see the point, but she was adamant. I put it away for two day, she came back the second and congratulated me on my common sense, I got it out again the next day....