The Bookshop in Wigtown is a bookworm's idyll - with thousands of books across nearly a mile of shelves, a real log fire, and Captain, the bookshop cat. You'd think after twenty years, owner Shaun Bythell would be used to the customers by now.

Don't get him wrong - there are some good ones among the antiquarian porn-hunters, die-hard Arthurians, people who confuse bookshops for libraries and the toddlers just looking for a nice cosy corner in which to wee. He's sure there are. There must be s...