Yeah. That would be the Grown-Up response

Next time it comes up I'll do that.
I recognize that this is a huge cliche, but I think the reason I get so riled up about this is b/c it echoes my relationship with my mom. She (my mom) can be pretty dramatic, and any kind of disagreement or dissent can lead to intense or prolonged reactions. (E.g. once when I was in high school I had just gotten home after a really long day and she was going on and on about a TV show. I was tired/stressed and still had homework and didn't want to keep talking about Lost, which I had never seen. I looked up from my cereal and said, "mom" in an annoyed voice, and she made me move my stuff out of my bedroom into the guest bedroom as punishment.) She also has trouble with boundaries (i.e. invading mine unless I repeatedly set very firm limits).
(thanks again y'all--writing this out really allows me to clarify what I'm actually thinking and feeling)