I told her that because of the clay sewer had to use chemicals. Unfortunately I didnt have time since I went in the evening and didn't have the supplies. I have to go back on another date. She told me that I will not use chemicals I told her to leave for a few hours if it bothered her she she responded that she thought it was suspicious that I didn't want her there and she would be present because she didnt trust me.
Sounds like a nut job. Either she can be there and "get exposed to chemicals" or she can go somewhere else... Ask her is getting exposed to fecal matter on the floor is something that is good for the baby.