The traditional definition of masochism is enjoying something that brings pain. But a common definition of pain is something one doesn't enjoy. Enjoying the un-enjoyable is obviously a paradox.

According to Philip K. Dick in 'UBIK', masochism is in fact a need to have complete control over one's destiny. Dick theorizes that the masochist destroys whatever path they're taking through life as soon as they think of a possible hazard. It's when you stop or cancel something enjoyable because of some small problem that could occur.

Teen angst often takes the form of masochism, such as "I'm not going to the school dance because ___________. I'm just going to sit here and sulk instead."