Years ago (back in 1989-1990) I worked for Radio Shack. The store was in an odd area. It was in the city, but all the surrounding areas were very rural. One afternoon a guy comes in and looks like he just came out of the fields. The store manager was helping him and he has a million questions about a CB radio antenna. The manager gets annoyed with the guy and hands him off to me. I spend the next 20 minutes helping this guy out and end up with about a $3 sale. The guy was very happy.
A few weeks later we had satellite dishes on sale for $3000. He came in and bought one. He came in the day before and saw I wasn't there and made sure to come back the next day when I was so he could buy it from me. Over the next few weeks he bought a new TV, VCR and nice surround sound system for his house. The dude was a farmer, had just gotten divorced and was getting the home theater he had always wanted now that the wife was gone.
The manager assumed he was some broke hick and because I treated him nicely I ended up making some nice money off it. (not only that he paid me $500 under the table to come out and help him install the dish
)