3. … maintenance worker?

Maintenance workers work by a strict schedule. Their task is usually to clean up other people’s mess. The worst thing is that you will be often blamed for mistakes made by other people. That doesn’t sound like a very rewarding job, does it? You might not deal with customers and the public in general, which is fine if you are one of those who do not enjoy working with clients. In some instances you will even be allowed to work at your own pace.