Actually, I don't dislike Yvette because of the ghost show in itself, I never believed it was real and looked on it as a fun to watch joke show. I'd watch the show and then scoot off to bad psychics to see the footage they'd got of Stuart or Karl throwing stones/lightbulbs and Yvette groaning then saying wow did anyone hear that? I took it as a bit of fun. I watched it to catch them out, but never disliked any of them - Much like you do with a magicians act.
I started to dislike her when she and Kieran (from MH) went to the press exposing Derek as a fake medium, she did an interview on TV, and with that same spiteful look on her face as we saw this week, she branded Derek a 'fake b'stard' She claimed everything else was real and it was Derek who was a fraud so they had to fire him, after setting him up on 3 of the live shows. I thought just wow, that's low. she ruined his career so publically for doing the exact same thing as she was doing.. In interviews Derek has always maintained she did that because she was jealous he was getting more attention. Regardless of liking Lady C or not, I still think Yvette is just doing what she's done before and that she's a very sly and nasty person. I never watched MH after that. This is why I don't trust a word she says.