Ken posted a comment yesterday asking about the difference between UK and French paint, saying that he had heard that paint sold in the UK is much higher quality. I have heard and read the same thing said.
You see paint being sold in all sorts of places in the UK; from cheap paint in supermarkets, to boutiques purveying the expensive (and too trendy for my tastes, no matter how good it is) Farrow and Ball paints, and a whole range in between. I would hazard a guess that Tesco's home brand paint isn't terribly high quality and isn't the paint the people Ken refers to are talking about.
It is still as good as new.
At 8.00am the paint was so thick it would hardly come out of the can.
Ot it could be the NAGAB syndrome at play...