Well, he is:

John might look like a man possessed when he is watching football but, in reality, he is yet another Portsmouth curiosity. It is rather bewildering to find him going about his day job – he is an antiquarian book dealer in the pretty market town of Petersfield.

“People look at me and think I must be some madman off a building site, but books are my life,” he whispers as we meet in the family bookshop.

His late father was a well-known book dealer, his brother is the Queen’s paper conservator at Windsor Castle and John has written a book himself.