The only time I had seen a Wideawake hat was on a statue of the poet Tennyson or on a packet of Quaker oats. Now here on this train....generated it seemed by his snores was this delicious Father Brown character who it seemed had stepped out of a Chesterton story. This was over 30 years ago but he suddenly appeared back in my head for no apparent reason...the memory of him as vivid as ever.