I've worked retail. The dorks were always easier to deal with than bad co-workers, because the customers usually aren't there every single day. Currently, I have very limited contact with the general public, but I'm constantly amazed at the type of questions that do get asked, as well as the general attitude. I've had people call and ask if they can get their money back because they bought a fishing license, but didn't actually go fishing. Or, better, they went fishing and didn't catch anything.