She was telling him what colours to paint each room.
They went into the first room and she said: "This room is to be a light blue".
The builder went to the front door and yelled out "Green side up !"
As he went back to her she said the next room was to be red.
The builder again went to the front door and yelled: "Green side up".
Once back with her she said, "This one to be tan".
And again, he went to the front door and yelled "Green side up"
The lady very curious said "I keep telling you telling you different colours, but you always yell "Green side up. What do you say that for?"
"Oh don't you worry about that," said the builder
Spoiler:
