Jots Jokes

A woman calls a painting contractor to her house to give her a quote on painting the interior. She takes him into the first room and says she'd like it painted pale blue. The contractor jots something down on his note pad, goes to the window and yells out, 'green side up'.
The woman takes him to the next room and says she'd like that one painted a pale pink. Again, the contractor jots it down, goes over to the window and yells out, 'green side up'.
Although curious, the woman continues to show him the rest of the house. In each room, the contractor takes note of her color choice, goes to the window and yells out, 'green side up'.
When they completed the tour, the woman asked the contractor why he always yelled 'green side up' whenever she told him her color choices, since all the colors were different.
Laughing, the contractor replied, "I have a crew of blondes across the street laying down sod."