Retail is terrible. You have jerks looking over your shoulder at every moment, waiting for an excuse to sell you down the river in exchange for a middling promotion. Now imagine if you were the only one in the store. Suddenly, things don't look so bad. Whether you're a night watchman, janitor, or zookeeper, a job where you can work alone is the artist's dream. Taking an hour here or there to shirk your duties and dig into your art could become a common occurance. If the boss doesn't give you enough work to fill the day, the only person who will ever know is you. Working alone is the next best thing to not having to work at all.