Two guys meet in the pub.
Guy 1: 'How's it going?'
Guy 2: 'Fine.'
Guy 1: 'How's the wife?'
Guy 2: 'Dead.'
Guy 1: 'What?'
Guy 2: 'I murdered her this morning.'
Guy 1: 'You're kidding me.'
Guy 2: 'No, I'll show you, if you like.'
So they go to Guy 2's house, and sure enough, in the back garden there's a big pile of earth. And right in the middle there's a bum sticking out.
Guy 1: 'Is that her?'
Guy 2: 'Yup.'
Guy 1: 'Why'd you leave her bum sticking out?'
Guy 2: 'Well I need somewhere to park my bike!'