I call it a fable, because it may not even be true. It's still a good fable.
Picasso is sitting on a park bench sketching and a woman walking by recognized him. So excited to meet the great Picasso, she asked him to draw a sketch of her.
He rolled to a new sheet on his sketch pad, and began; when he was finished, he peeled the sketch off and handed it to her. "That will be $5000."
"$5000?!" she screamed, "but it only took you five minutes!"
"No madam, actually it took me my entire life."