I once looked at a possible install, nice place, on the water. As I did a walk-through I noticed the grounds looked like a million bucks, turf and plantings. The would-be client said he used Gardena oscillators & timers for turf and the wife took care of the plantings. As he had a very shallow well, I told him unless he wanted to drop big bucks, he had no need for me. I gave him my card and bailed. Couple of days later, I get a note from him with a hundred dollar bill enclosed. His note said, "you are the only contractor I've ever met that talked me out of spending money."