Interestingly, in Tim's interview today with the Washington Post, he stated that twice the producers had to stage an "intervention" with Vicborya. That she didn't apparently understand the concept or time constraints of the show.

Her situation "was rather unique. We had to have two off-camera interventions. She was a crabby-appleton. She was so sour and dour and bringing the production down. . . .
Had she never seen the show before, I wonder?