londonone Are any of the posters who are convinced that it was a sexist remark going to address the fact that dc previously aimed the exact same comment at David miliband?
Yep - I'll have a go! 
The fact that he used it against DM, does not change the fact that it is a sexist remark. The usage against DM is derogotary as it implies he is being "female". Just in the way that boys/men/(& some girls/women) will say "don't be such a girl!" as a put down to a male.
For me, the important thing is that men recognise their position of priviledge and power in this world, and especially in the House of Commons. There is not a level playing field.
Sexist remarks, are a reflection of society and they reinforce outdated ideas and they shape behaviour.
Two good blog posts on what's wrong with sexist remarks which came out of the Sky Sports Sexist Remarks fiasco:
From Sian & Crooked Rib blog.
Cruella blog.