"No problem," the contractor responds, then walks over to a window, leans out and yells "Green side up!"
The owner is somewhat taken aback but says nothing. They go to the next room and the owner selects a deep, earthy brown. Again, the contractor agrees, then walks to a window and yells, "Green side up!"
So it goes in room after room. Whatever color the owner selects, the contractor agrees but then immediately walks to a window and yells, "Green side up!"
Finally, the owner calls him on it: "Look!" she says, "I don't think you're taking me seriously. Whatever color I choose, you yell 'Green side up!'"
"Aw, don't worry about it lady," the contractor says. "It has nothing to do with you. It's just that I've got a couple of blondes laying grass across the street."