Sidebar: That "C" heard "wrong spot" was an inner dialogue she had with herself and it flew completely in the face of ahimsa. That she had judged her repositioning as "wrong" and then falsely projected that judgment on to "B," when everyone else witnessed the contrary, was representative of a VERY OLD emotional wound of C's and I gotta give props to "B" for not taking the bait.
I like C enough, but I keep my distance because C is what I consider a bully sheep: someone who has and projects self-hate issues and unconsciously manipulates situations to make herself the victim of people who happen to be breathing around her. Compliments from bully sheep are usually dipped in a healthy dose of self-deprecation so you'll be lulled into complimenting them back. Here's an example:
"I could never wear an outfit like that; she looks so good in it, with her cute little body... I'm an albatross." (With her 5' 10" frame, wavy auburn hair, alabaster skin and lovely weight.) A victim/sucker would say, "Oh! Of course you would!" and the bully sheep would hope the sucker would say she couldn't wear an outfit like that either. Don't fall for it. Just say, "Oh" and move on. (Staying neutral leaves them with their stuff that they tried to put on you.)
You As Much as You Fear They Are.
You As Much As You Wish They Were.