My answer : "Yes, at times." Interviewer did not seem to mind that i answered in that way and actually seemed to prefer someone who was a bit "shark". I found this difficult as being aggressive can be perceived as a fault - especially for a woman - however, in this case, and for the role which was required, the interviewed seems to want someone who was less passive and more aggressive. I think he also wanted to see my "shock" threshold to see if I would be shocked by the question. The fact I didn't blink and answered with a smile seemed to satisfy him.