Ok, I think we are good here, don't use a vacuum with rorating parts nad good.
I had a guy (would not call him a mechanic) obsessing one day over the company shop vac not working. He had it apart.
I hear spritzing's and I turn around to tell him not to start it, PHOOOOM
Yep WD40, brushes, sparks, kind of a vapor bomb, not too much damage. Twit.
Of course he was the guy who used the pneumatic drain cleaner wrong to (you don't remove it unless the noise is right, you just build a pressure pulse that is trapped in the drain). He pulls it out,
Yep, phoom, covered with goo, pretty cool outline in the locker room where he was standing.
I won't mention the time I was cleaning a coffee machine tray drain that had two drains in it. rather than go down the main drain back up the other drain.
Pretty cool coffee covered ceiling I got to spend a lot of time cleaning.