Have you met someone who's given you bad vibes?

Who was it, and how did you handle it?
 
I don't get that feeling much. But our baby is in hospital, and we met a ton of people the last few days. He's expected there for a few weeks.
 
A chaplain came by, and something about him feels off. I feel uncomfortable in his presence. We're not religious, so we don't require his services, which I'll flag with the social worker and healthcare nurse.
 
We're discouraging any unnecessary drop-ins by keeping the door closed as much as possible too.