She went to a neighbourhood of mansions, walked up to a house, and knocked on the door.
When the owner answered she asked him if he had anything for her to do. “Well, you can paint my porch. How much will you charge?” She replied, “How about $50?” The man agreed and told her the paint was in the garage. A short time later, the blonde came to the door to collect her money. “You’re finished already?” he asked.
“Yes,” the blonde answered, “and I had paint left over, so I gave it two coats.” Impressed, the man reached in his pocket for the $50.
“And by the way,” the blonde added, “that’s not a Porsche; it’s a Ferrari.”