Well, first, name-calling is pretty juvenile and lousy way to behave, in the first place. So, these people, on top of being liars, must also be slightly anti-social, and a bit behind in their development.

And, anyone who considers them to be "right" all the time is very likely also sharing the same traits as them. Just a guess.

I would find ways to never be in the same room with these individuals, ever again. It sounds like it's stressful, and is a complete waste of your time.

If that is not an option, I would hone my "grey rock" responses (which is zero response, in fact) and let them see it doesn't get to you. Shrug, and say, "What- ever", over over again, in your calmest, most indifferent tone. They hate it when you aren't vulnerable to their nonsense anymore.

Total love and respect for Fuzzy!!!!!!!!!!!!!