"If I wanted yer to lend me ninepence, would yer lend it me?"
"No."
"Why wouldn't yer?"
"'Cause I 'aven't got it."
"You never don't seem to 'ave nothink."
"I 'ave as much as you, perhaps, once in a while."
"I've just stood yer 'arf a pint."
"And I've stood you 'arf a pint more than once, and more than twice."
"I don't say you 'aven't." The original speaker turned to me. "If a friend was to ask you to lend 'im ninepence, wouldn't you lend it 'im?
"That would depend on whether I had it."