Well, a 1:1 mixture of chlorine bleach and vinegar should damn near instantly and permanently corrode the steel. Don’t breathe the fumes, but I have toyed with the idea of a squirt gun filled with instarust.
Hell, just bleach alone will eat through stainless steel!
The acid makes it rust in seconds instead of days though, instantly visible and quite permanent damage.
Days might actually be better. If they go to work and come back to it rusted all over, they will know it was a malicious action. If they start to see rust the next day and see it slowly progress, it might be hard to trace back to someone.
So dual wielded super soakers, one bleach filled, one vinegar filled!
Excellent idea
Sounds like fun
“Don’t breathe the fumes” seems like a bit of an understatement for a reaction that produces chlorine gas.
If you are using household concentrations you won’t generate enough chlorine gas to be harmful in a ventilated area, like outside. If you put it in a bag and huff it you are going to have a bad time, but enough to cause damage can be tossed into a mason jar, shaken, and thrown pretty safely.
That, and it doesn’t sound great to put in a squirt gun, which is almost certainly going to leak to some degree
DO NOT MIX BLEACH AND CHLORINE, unless you want die or seriously injure yourself. When bleach is combined with acetic acid it produces chlorine gas, a literal chemical weapon/warcrime. If you want to corrode stainless steel use regular bleach, it does the job just fine.