In person only a few times. For example, one of my relatives had a boyfriend who gave me a really creepy vibe.
He ended up being a controlling type with trust issues.
After the relative broke up with him, he appeared at the doorstep bleeding from cuts on his wrists.
Another relative had another biyfriend that gave me the vibe and he turned out to be a cheating bastards and a scammer who was only under control because of his mom, and when his mom died he went full unleashed. Now they are still in litigation over a piece of land he convinced the relative to buy, but now refuses to buy or sell, so the relative is stuck with that crap. The only reason to keep that is if he wants to get the whole terrain for free, or keep things like that to cause distress and harm my relative.

On the other hand, one guy that I don’t like at all because he’s a very right-wing fascy type, doesn’t give me that vibe, and he’s been really good with another relative despite me not liking him and putting in my relative’s head all sorts of right-wing ideas I don’t like at all.
He may be wrong, but he isn’t ‘bad’, if you can get what I mean.