There are 10 kinds of people in this world:
those who understand binary
and those who don't.
(seen in someone else's .signature)
—19 Oct 2003
There are two kinds of people in this world:
those who know what a .signature is,
and those who don't.
—19 Oct 2003
There are two types of people:
those who talk about undergarments on a Christian SF mailing list,
and those who do not.
—21 Oct 2003, in response to a very odd
off-topic thread going on at the same time as the challenge.