" You know what my mum once said?’ said Rosie… ‘She said that if a just-married couple put a coin in a jar every time they make love in their first year, and take a coin out for every time that they make love in the years that follow, the jar will never be emptied.’
And this means…?’
Well’, she said. ‘It’s interesting, isn’t it? "

― Neil Gaiman , Anansi Boys (American Gods, #2)