I locked her in the toilet the other day and she got mad.
I think I will apologise eventually, but I really don't think this is a big deal. She doesn't have any issues from her past or claustrophobia to make her behave this way, and it's just something I did on the spur of the moment.

I was fixing her lock, then i asked her to try it, because I told her it was fixed, even though I knew it wasn't. Then she was locked in for a minute or two.

I guess she is mad because I lied about the lock being fixed.