A woman spotted Picasso sketching outside a café in Paris.

The woman asked Picasso if he might sketch her, and charge accordingly. Picasso kindly obliged. In a few minutes he handed her an original Picasso.

“And how much do I owe you?” she asked.

“Five thousand francs,” he answered.

“But it only took you three minutes,” she said.

“No,” Picasso said, “It took me all my life.”