Interesting discussion re the temperature of said pies / pasties at sale - hot and cold not too difficult to detect and deal with VAT-wise appropriately, "warm" seems to be the one posing the problem. Apparently the problem stems from the fact that if a pie / pasty is sold on one day when the ambient temperature is colder, then the pie would appear warmer than a similar pie / pasty sold on a warmer day when it (ie the pie / pasty) would appear colder, thus VAT rates could and would change daily.
That could also lead to accusations for futher discrimination on the grounds that we all know that the weather down sarff (Middle England, Toryland) is considerably warmer than oop north, so tax would be less likely to be applied in the pie-guzzling areas of Tory Heartland.
Either way, won't affect me because I can't eat them.
Edited: 30/03/2012 at 15:20