A blonde, wanting to earn some money, decides to hire herself out to do handy-work. She goes to the front door of a house in a wealthy neighborhood and asks the owner if he has any jobs. "Well, you can paint my porch. How much will you charge?"

The blonde says, "How about 50 dollars?" The man agrees and tells her that the paint and equipment are in the garage. The man's wife inside overhears the conversation and wonders, "Does she realize that the porch goes all the way around the house?"

The man replies, "She should. She was standing on the porch."

Twenty minutes later, the blonde comes to collect her money.

"You're finished already?" the man asks. "Yes," the blonde answers, "and I had paint left over, so I gave it two coats." 

Impressed, the man reaches in his pocket for the $50. "And by the way," the blonde adds, "that's not a Porch, it's a Ferrari."