A man walks into a bar and orders a beer paying with a £50 note.
'Oh dear doesn't look like I've got any change,' says the barman, 'Tell you what. I'll buy everyone else a drink with what's left. Okay?'
The man develops a stutter, 'F-f-f-f-f... F-f-f-f-f.. oh lord... F-f-f-f-f-f.'
'Well,; said the barman, 'You can't say fairer than that.'