in reply to What 'should' a professional PERL programmer know?

I use perl profesionally, but neither my current nor previous jobs related in any way to Perl...
It just happens to be my language of choice that allowed to solve tasks efficiently.

Nowadays I am programming assembler allowing Perl to help me a great lot of deals.

Plus, I am using Perl while on the road - doing my own hobby tasks.

Welcome to the club :)