I think she has singlehandedly redefined solipsism for the 21st century.
Here comes a pronouncement that is going to get me hung, drawn and quartered by the people at Private Eye and the Observer who love to document what I spend on clothes and accessories but always fail to mention the £20,000 I've given to charity in the past two years.
That is how much I'm giving now, before what will soon be a 50 per cent tax rate; ye gods, I hate to think what is happening to most charities in this country at the moment. Equine Market Watch, of which I am patron, has seen a 50 per cent drop in donations so far this year, despite a huge increase in the number of horses and ponies being discarded.
Here we go with that pronouncement anyway: fashionistas are the new black people, the new Irish people, the new Muslims and the new fatties.
(Do not, on any account, criticise a 22-stone single mother on benefits for refusing to buy organic chicken, as I did a year or so ago when commending Hugh Fearnley-Whittingstall's campaign for more ethical poultry farming; I mean, come on, that single mum spends far more on food in a month than I, as a skinny fan of Fendi and Ferretti, do in a year. Nonetheless, I'm still recycling all the hate mail I received in response to my comments.)
Fashionistas, though? Fair game. 'You spend £200 on skin cream?!!!!' a friend, who has a 12-year-old son who is the owner of a Nintendo DS, Xbox, Wii, iPod Touch, Apple MacBook Pro and more pairs of trainers than I have handbags, had the cheek to reprimand me the other day while out shopping.
Well, I'm sick of it, not least because to criticise those who like fashion is not only unfair, it's sexist.
If Sarah Brown had given a party for the car industry and arrived in a shiny Aston Martin, or for the agricultural industry and arrived on the back of a heavily subsidised cow, we'd all be patting her on the back.
What confidence would be instilled in the rest of us if Gordon Brown turned up for the G20 summit in a baseball cap and a pair of baggy jeans from Primark?