I think the victoria/heather thing is made up. All the girls talk back to judges comments during judging, it's just cut out. And everything Victoria has stood up for are pretty normal things. If someone just randomly said you were 'insecure' I would certainly say something about it. And the second time it seemed to me like she was genuinely asking twiggy a question, not challenging her. Maybe they've just never had a girl before who actually thinks and isn't just SO flattered to be on Tyra's show.....