Waiting To Divorce

Two ninety-year-olds stagger into a Belfast solicitor's office and ask for a divorce.
'A divorce?' says the solicitor. 'How long have you been married?'
'Seventy years, says the old man.
'And why are you getting a divorce after all this time?'
'Can't stand the sight of each other,' says the woman. 'Never could.'
'Well? asks the solicitor, 'why didn't you get divorced years ago, then?'
'It was for the sake of the children, says the old man. 'We wanted to wait until they were dead.'