I had this very same problem with a private teacher. The first time she came to my house, broke two kitchen chairs and had to replace the toilet, it cracked. I phoned her before our next home class and told her I changed my mind about the tutoring. This was a private quilting teacher.
She thought nothing of what she did to my home.
I would suggest teaching her at her house. Pack up like you were going to a class and do it at her home.
Peace
I now always meet people away from my home for the first introduction.