Of course, and I thought I was being facetious. The best approach is to give as simple and clear answer as you can, assuming the other person will understand. Then if they give followup questions, determine their skill level by the nature of the question.

The one followup question that I always get, about Perl being a commandline line program, that makes me cringe, is " oh, it's DOS". I usually just say yeah, it's a suped-up DOS. :-)