An American is on 'vacation' in the UK and is touring famous Cathedrals and churches. In London, he visits Westminster Abbey and sees a golden telephone with a sign advertising 'calls to God, £1000'.
In York, he visits York Minster and sees the same golden telephone with the same sign advertising 'calls to God, £1000'.
In Edinburgh, he visits St Giles and again sees the same golden telephone, but this time the sign reads 'calls to God, 10p'.
Surprised, he seeks out a member of the clergy and asks,
'Minister, in Westminster Abbey and York Minster I have seen this golden telephone and calls to God advertised at £1000, yet here the price is only 10p! Why is that?'
The Minister replies 'Ah, you are in Scotland now. It's a local call!'