> If uttering a sentence like this is a "theoretical" solution for you, I don't know what to tell you, except that you're not going to have a good time in any job until you learn the practicality of saying "no" the hard way.
but no one wants to say no here. the thing is going to happen one way or another, if only because everyone involved is passionate about making sure artists can reach their dreams. if we can't do this, we just close shop.
Have you considered that you can help the artists reach their dreams better if you make sure they check in with you about their gear before they haul it in out of the blue?
In no way does doing that inhibit their art making.
All it does is helps you help them.
To put it another way: any reason they're not doing that?
Other than "nobody bothered to think about it, and the tech guy will make it work anyway".