' but consider your average Saturday night, even in winter, and you can see plenty of lasses out in the cold night air wearing less.'
Yes, but this is male warriors we are on about, the female of the species can apparently stand the cold better due to genetics or something, men aren't as hardy. And they're usually p*ssed before they set foot outdoors anyway on a Saturday night, so alcohol has some sort of magic cold repellant as well.