The Docs I bought from the man on the market about 3 weeks ago have got a fault, where the sole is splitting between the two differen coloured layers. Took them back, he was very apologetic, found another pair the same in the same size but they had the same fault, so he gave me my money back absolutely no quibbles. Thumbs up there.
Only then Karen took me into the alternative clothing fair and I spent 24 quid of it on a couple of tops instead, but one of them was in the sale so that's OK then. And hey, I still have 11 quid left over and I finally got round to fixing my old docs too, so I'm not even stuck with no shoes. Nice one.