I've noticed lately that my boyfriend does this and it drives me insane. Last month, I had a problem with a colleague, and he acted the same way then. He doesn't know this person btw. It’s a bit like when people stay neutral during an argument. I would understand if they know both parties and don't want to upset anyone, but it seems odd to me if they don't. Why would they care about upsetting someone who they don’t know? I had a friend years ago who was exactly the same. Would anyone else find this annoying?