'Please triple my prescription for Viagra,' a man begs his GP. 'But why?' the
doctor asks. 'Well' the man explains, 'my girlfriend, my ex-wife and an old
flame will all be in town over the weekend.' 'I see' the GP says, tripling the
dose. On Monday morning the man returns with his arm in a sling. 'Oh dear
I assume all three women met each other,' the doctor says. 'Not at all,' the
man wails. 'None of them showed up.'