Vonka is one of a number of candidates interviewing for the post of nanny for Dave's young step-daughter, and he is particularly anxious that he employ someone who will be a suitable role model for the girl. He compliments Vonka on dressing smartly which is very much in her favour when so many of her competitors are rather scruffy. However, there is one thing that Dave is especially concerned about, and that is having someone who might introduce his step-daughter to use. Vonka reassures him that she does not take of any kind and would be happy to submit to a test, but Dave worries that whil... Show more