FI and I are currently on the last night of a family vacation, and I have never been so angry at my FMIL as I am right now.
Backstory: FMIL is an alcoholic and behaves badly when she's drunk. Earlier in the week, FMIL got so drunk and inappropriate that FFIL left without her, leaving her and Grandma stranded here. FMIL is getting a ride home with her sister, but FI and I got volunteered to take Grandma home. So we have to stay until Grandma is ready to leave.
FI and I are staying on the third floor. Because it is the only room on the third floor, it has no door at the top of the staircase. Therefore, we can hear everything happening in the house, including their very loud drunken card games. I went downstairs to gently remind people that we can hear them. FMIL looked me right in the face and said "I don't care". I know she's drunk but that is no excuse for being so rude. I can't sleep, and I'm so angry I'm shaking.
I have no idea how to deal with her. I am 10000% done right now.
ETA: Waffle-gobbler is my new favorite non-cursing curse word.