you hired a construction crew to do some work in your shop and took the time to have a talk with them about the difference between construction tools and precision wood working machines.
All your machines had nice shiny-waxed tables and all of them perfectly (if there is such a thing ) aligned and ready to work.
You ask that they not use the machines for a flat surface to work off of and explain that even handprints are not good for cast iron tops. And especially, No Drinks on the machines!
You tell them that if they have to work where the machine is, simply roll it out of the way or cover it. (And provide the covers)
Well, the work progresses nicely and you are pretty happy with the quality of the job even though you can see that they are going through your tool boxes and using your hand tools even though you have told them to use their own tools and leave yours alone.
And then you find this:
Isn't that the prettiest set of FOOTPRINTS you have ever seen on the very end of my jointer in-feed table?
When they started you could almost see your face in that table.
He must have stood up there for quite some time for that many sweat drops to be on the machine. It is right in front of the air conditioner.
I am not a happy camper.