You should have given her the feedback.
She's losing jobs because of it (I"m assuming she is young and inexperienced at interviewing)
hmm. tough one. My SO just interviewed a guy yesterday who brought in a similar turn off. he was ugly. My SO was so distracted by his chicken neck, squashed face and receding hairline that he couldn't focus on the responses to his questions.
My guess is you were distracted by the bad choice of perfume. Perhaps a comment like, "Is that Britney Spear's latest, or did I step in something on my way back from lunch?"