If I’m in a room with people I know and I plan to leave the room for a long time, I tell them where I’m going. If it’s for a short time I do not.
What (if anything) is an appropriate time scale to leave a room without announcing when/if you’ll be back?
Leave when/how you want and let them figure it all out when you’re gone.
They don’t pay rent for my basement, they don’t pay me for my time, they deserve nothing. Less then nothing. They should be grateful I am even around to leave in the first place.