A man went into the pub and said to his friend 'I've just murdered my wife and buried her in the garden'.
His friend said 'I don't believe you, you'll have to show me to prove it'.
The man took his friend home and showed him the grave in his garden.
His friend said 'I can see the grave but why have you left her arse sticking out?'
The man said 'It's somewhere to park my bike' .