Should have been from the Department of the Bleeding Obvious...

Hats. I don't do hats. As well as reducing my face to imbecility, they get goddam itchy after a while - so I don't wear 'em.

But don't dare complain of being cold if you don't have a woolly bunnet on because you always get someone saying, "Well, you should wear a hat - don't you know you lose 40% of your body heat through your head?"

I've always though this was crap - and I never understood why people believed this counterintuitive nonsense.

Today I stand hatless and vindicated by science.