I remember you being somewhat worried about Dad making it home from work unscathed by the violence taking place on campus when the protesters took over the administration buildings, etc.
We were heavily pressured to “participate”, and yes, I was worried that he might have been “scathed” for his quiet reluctance.
I am surprised that you remember, for you were only 7, if I remember right.
Here is an article, with some photos of the protesting going on.
http://www.bpdthenandnow.com/1970UBPROTESTS.html