A man went to his solicitor and told him, "My neighbor owes me £500 and he doesn't want to pay up. What should I do?"
"Do you have any proof?" asked the solicitor.
"Nope," replied the man.
"Okay, then write him a letter asking him for the £1000 he owed you," said the solicitor.
"But it's only £500," replied the man.
"Precisely.