1. "What color are you wanting to paint it?" Should not be the first question he asks. The color should be the most irrelevant question this man ever has to ask. I'll have it painted neon yellow if I want, all In need to know is CAN he apply the paint in a manner consistent with the "inside the lines" genre of house painting.
2. When you tell him that the West wall is to remain unpainted brick, and that you only want the front, the East side and the back painted, and you want it painted in three colors, if he looks at you, cocks his head and says, "You want me to paint each side a different color?"please, for all that is good in the world, do not hire him.