If something happens twice, I put it in writing either as a small notice or in my information book.
These things would include
Please make sure to turn off the water in the shower and/or sinks. If left running, it will run our well dry and cause issues with our plumbing and appliances*
Please do not move the furniture.* Why? why would anybody move furniture from one room to another???
Anybody else have anything come up that astounds them?