Dad doesn't hear so well these days. Mom finds it highly irritating; the rest of us find it highly entertaining.
Last night we had spaghetti for dinner. At some point in the meal my mother asked for the cheese in the green can. I reminded her that she prefers Romano Cheese, and she insisted that the green can was Romano Cheese. A brief argument ensued over what kind of cheese comes in what color can (because why just read the labels and eat the cheese you want when you can argue about it?) and then No. 2 asked what the difference was between Parmesan and Romano.
I told her, "Parmesan tastes better."
This answer did not satisfy my mother, who of course knows everything. She launched into a long explanation about the history of Romano cheese and Italy in general. After what seemed like an eternity, she segued into, "Now, Parmesan cheese comes from Parma..."
At this point, Dad had had enough. He pounded his fist on the table and bellowed, "PARMESAN CHEESE DOES NOT COME FROM CHINA!!!"