Have to be vague about this, but basically DB asked a mate to drop in on his own to see DM in her new assisted living flat. DM is vulnerable and disabled and had never met this mate but it turns out she is some kind of expert on disability, and I am just wondering what was going on. DM has her own GP and assessor and this mate going in out of the blue 'just for a chat' doesn't seem right to me. Should DB have run it by the family first, or AIBU?