I find that interesting things just sort of happen. For example with my Faerie sim (see avatar pic) she went into the Law Enforcement career due to having a wish to do so at game start. I have free will set to High, and generally only step in to ensure things like eating, using the bathroom, or going to bed on time occur. Well, my sim started to date her boss on her own, and I was thinking "huh, that's kind of neat". Well, while they were dating Chester (the boss in the law enforcement career for that game) quit, switching to a different career. Which at the time I didn't know was possible. And when they eventually married, I discovered that Chester had quit being a police officer to become a criminal, and was currently rank 4 in the criminal career path.
O.o