Why is CS so male dominated?

Why do you think CS is so male dominated? My friend said it was because of the male programmers that are basement dwellers and smell bad.

>>11
While I cannot comment on the emotional stress being caused by being near me or my compatriots, I can testify that most people working in the IT industry are indeed pretty desperate and will go to ugly lengths to make an impression the moment a female creature walks within their line of sight.