2Biz,
Did you have to break up hardened concrete to save the vac? I feel your pain. Did your cameras get some suspects' license plates?
With one of our vacs about 2 weeks ago ... some rascal had what seemed to be over a gallon of dirty oil he managed to get all over the concrete anywhere near to the vac where customers need to walk on to use the vac. Luckily we caught it in time before any got sucked into the filter bags.
We used "floor dri" which we planned on sweeping up thoroughly when the oil got absorbed. That was complicated by the fact that there was some water from melting snow causing the mess to be partially frozen off & on everyday since. No license plate this time ... I am not sure how the local PD would handle it even if we would have gotten the specific license plate?
I agree with MEP001 about the possibility of malicious mischief. I have memories of a new person in town customer (outwardly friendly sort?!) over 25 years ago who possibly was a sick pyromaniac who set a few trash barrel fires on our property. Luckily he also did the nasty deed at another local business who caught him. He was from Atlanta, GA ... once he was caught that specific problem no longer occurred.