Best of luck, friend. That’s a good thing you’re doing for your mom. I, too, have a troublesome brother in a southern state, and even my own family members have told me, “If you ever visit him, for the love of god, get a hotel. Do NOT stay at his house.” I’m glad you have friends that you can stay with instead. Hopefully you’ll arrive back home with more fun memories of friends than anything else.
Oof, poor kitty. And isn’t that just what this trip needed - more uncomfortable tension in the air. Is your brother the type of person to find comfort from talking about a recently-deceased pet? Or will it just make things more awkward?
My brother (and his wife) practically house a menagerie/farm. Not that they care about animals in some particular way, I honestly don’t know why they do anything they do. But I know that for them, life just rolls on.