My side of the medicine cabinet has gained half a dozen teenager hair products.
I didn’t put them there.
When I want to use my hair dryer, I have to find it on Sarah’s desk.
I didn’t use it there.
My clothes are in a dirty laundry pile, hidden in Sarah’s room.
I didn’t wear them.
I can accept everything becoming community property EXCEPT for my drawer in the bathroom. I’m getting a drawer lock to keep her out of there.