Blokey retailers Home Timber And Hardware and Repco bank on consumers who are sick of getting served by spotty teenagers who have never changed a washer or a sparkplug in their lives.

triple j's latest listener-voted "Hottest 100 Of All Time" reveals an embarrassing lack of female musicians. What does this sausagefest say about sexism in radio programming and among today's yoof?

You might think high-pitched shrieks aren't especially manly, but in the third of our four-part series, we examine the unexpected things Michael Jackson's non-verbal vocalisations reveal about gender.