This happens very little now. In the early days it was a regular occurrence.
(I don't blame her. If the roles were reversed I'd be snippy too)
We all have our ways of showing our displeasure. Some people shout. I go all sulky (at least I think that's what I do) and my mother reverts to being the Daughter of the Big House.
My mother: (seriously pissed) Did you ask permission to move my books?
My mother: Cheeky.