I should clarify it was a rather hard Cough. I have them at times Normally I can feel them coming on and move away but this one caught me off gaurd. Thats why I went so far down the case, Yes I know it was a decent amount of force to do this and no it wasnt on purpose. Side affect of my blood pressure medicine. Not that it makes a difference in the question I just realized it made me sound like I dont pay enough attention which I do. Almost drives the wife mad with all I do to make a round up.