Why does Jeanne Calment say "Sorry, I'm still alive" to the local lawyer every year on her birthday?
Because the lawyer has paid her much more money than the value of the house.
Because the house she sold to the lawyer isn't worth the money he has already paid.
Because she had an agreement at 80 with the lawyer which was to her advantage.
Because she has asked the lawyer to pay her more rent than they first agreed.