As I stated before, this is the first known physical act. I didn't mention the fact that this did happen in front of a patient. Another incident involved another employee, as act that would be regarded as sexual harassment. One more was trying to force another assistant to complete a procedure which she was not qualified to do, and which she ultimately refused to do, resulting in another loud reprimand. At this point, my daughter has updated me that all three incidents are being filed in a report which will be sent to the company's head HR Dept. I hope the result of that will be satisfactory.
I have done much research on workplace bullying and harassment since my original post, and have found encouraging efforts toward law reform to include non-sexual harassment as a valid claim.
I do appreciate all of your responses