I used to manage a major retail store. On my way into work each day I would always stop in a local bakery, and buy a special treat like a German Chocolate cake, Cheese Danish, those big oversized chocolate chip cookies, ETC. It always varied, and I would give them only to the employees who worked the customer service dept.

If you ever want to lose faith in the human race then just work customer service for a few weeks What you'll find is that the most rude and uneducated people always seem to be attracted to going to customer service, many of them con artist. That's why I would buy those special treats (out of my own pocket) for all the employees who had to deal with them.