/cgl/ - Cosplay & EGL

Does anyone here have someone in their comm that they suspect is mildly/moderately mentally delayed who causes trouble? I recently had a girl like that in my comm damage my BtSSB parasol because she was careless with it and tried to open it in a car. I ended up being able to sorta fix it and told her not to worry about replacing it because I didn't want to have to deal with her word salads and lack of understanding of the situation anymore. She sent me this after I told her to be careful with other people's things. I have no idea what to make of it, but something about it makes me even more angry.