Painter

An Irishman is down on his luck, no home, no job, nothing to his name. He's knocking on houses in the hope of getting some odd job work to buy some food.
He knocks on a door and explains to the homeowner his position, anyway the homeowner says "I'll give you $50 to paint the porch out the front."
He comes back about 2 hours later and says he's finished, the owner gives him his money, and as the Irishman is walking away, says, "By the way it's not a Porch but a Mercedes!!"

GROAN

And he lived to tell about it.