My brother answers for other people when I’m speaking to them.
So an example, I showed DH a photo on my phone of DD and held it up. Brother was sitting across the room and when I said ‘awe isn’t she cute’ shouted ‘yes she is’ in that sort of monotone not listening tone (and was looking elsewhere at the time.)
Or I will ask someone a question that they know the answer to (eg to FIL ‘when are you off to Devon?’ and he’ll shout ‘I don’t know.)
I know it sounds really petty but it alienates me from a group because I literally can’t talk to anyone.
I don’t need advice on dealing with it S such I’m more wondering if it would annoy others as much as it does me?