I just had one of their pushy salesman at our door. My wife was courteous enough to listen to part of his sales pitch, then said, no thank you. But he just kept on talking. I know sales people don't take no for an answer, but if a person says 'we're not interested' 6 or 7 times, it's time to do the polite thing and just walk away. Finally, I had to go to the door and play bad cop. Again, I told him 5 or 6 times that "we're not interested, have a good night." I finally had to just close the door on him.
It's very annoying that a salesman is so pushy. Now, if and when we are interested in solar, I won't even use them because this guy just left a horrible impression.