Your local dog charity might give you some advice. They might even (for a deposit) lend you a chip detector, so you can at least check he is really chipped.
If so you might want to check who comes up as the last registered owner - it should be the people offering him for sale. If not, check with the people named, always a possibility he was stolen.
Waitrose has stopped providing bags for loose veg.
Cat among the Pigeons? Not quite. (a light hearted post)
My daughter is lying about me and editing me out of her life.

