Susan
some years ago there was a colleague at my office who was standing at my back and who put his knees in my knees, thinking he was making a joke.
He didn't know that I was operated at my knees some years before and that I suffer a lot of artritis in my legs. But that is not a reason to touch me without any warning.
I went directly to a hospital to have a statement of the doctor and dragged that colleague to court for injuries and I would do the same with someone who would pull a chair back on the moment I would like to sit down and who woud made me fall,
Marc