Tax Collectors

You gotta feel bad for meter maids and traffic cops. Or really, anyone who has a job that forces them to do stuff that pisses other people off. Like repo men. I mean after all, they're just doing they're jobs. I bet the guys who have to write people parking tickets get screamed at pretty much every day. You know, like some guy tries to park his car on the twentieth floor of a skyscraper while he goes out to buy string beans and you gotta go in there and write him a little piece of paper that says "Hey you know what? Maybe you should park ANYWHERE BUT HERE." And then the dumbass comes back while you're doing it and starts yelling about how there was a very important task he had to attend to. And then when you ask him about all the grocery bags filled with string beans, he claims that he was thwarting a robbery at the supermarket. And then he tries to sue you, and you drink a lot. Or at least, that's what I assume happens.

Then again, it'd probably take a certain type of person to pursue this kind of career in the first place. Like how they always portray repo men on TV as being soulless psychopaths who derive an almost perverse sexual glee from taking other people's stuff. Although I bet that probably wouldn't go over very well during the interview, unless the other guy was equally psychotic.
"So Johnson, what makes you think you're qualified for this position?"
"I LIKE TAKING PEOPLE'S THINGS! HAHAHAHA!!!"
Although even the psychopath might get a bit nervous once you start chewing on the desk and trying to remove his necktie by force. So maybe all repo men aren't kleptomaniacs, but it'd probably help. Also, I may have kleptomania confused with complete insanity. Oh well.