I didn’t know whether or not I should have said something. I didn’t really mind her doing it. At the time, I wondered if her teacher might say something to her. Thinking about it after, I realized that it was my responsibility, not the teacher’s, to speak up and say how I felt.
This also raises another question in my mind. Is it just about me? I am not sure. Even though I didn’t mind, maybe I could have used this opportunity to educate this girl about people with disabilities and teach her that the equipment that we use is an extension of ourselves and that our personal space needs to be respected. Not that I would make a big deal of it, but maybe politely asking her to remove her arm could have gone a long way in educating her.