I was in a gallery the other day and I saw this sketch of a horse with a little set of wings tied to his back. The caption went something like 'He loved dressing up as his favourite character from Greek mythology.' I don't know if it was the expression on the horse's face or the wit of the one-liner but I laughed out loud and counted out all the change in my wallet to see if I could make up the £23 asking price (I couldn't - must go back when a little bit richer).

 BUT I did manage to pick up…