A Man lost control of his vehicle and plowed into a pasture killing a two
month old calf. Mortified the man jumped out of his car and offered to pay
the farmer for his cow. Well, said the farmer, today the calf is worth
five-hundred dollars but in two years time it will be worth nine-hundred
dollars. You owe me nine hundred, concluded the farmer. The driver obliged
him and wrote out a check for nine hundred dollars. With a flourish he post
dated it for two years.