A policeman patrolling the streets of Dublin late one winter's night noticed a man on his hands and knees under a lamp-post.

`And what might you be up to?' he asked.

`Sure, I've dropped a ten-pound note, constable,' explained the man,

`and I'm trying to find it.'

`Are you sure you dropped it here?' asked the policeman.

`No - I dropped it somewhere in the next street,' said the man.

`Then what the devil are you looking in this street for?' said the policeman.

`Because the light's better here,' replied the Dubliner.