As a painless way to save money, a young couple agreed
that every time they made love, the husband would
put his pocket change into a piggy bank.
One night, during a particularly athletic session of
love-making, he knocked the piggy off the table.
It hit the floor and shattered. To his surprise,
among the coins was a handful of bills.
"What's with the paper money?" he asked his wife.
"Well," she replied, "not everyone's as cheap as you!".