The belief that we could in any way be bad for ourselves is unhappiness. Anyone who believes that is, by definition, unhappy. People are either sad or angry at this proof.
Sadness is the acceptance of such proof.
Sadness is believing that what is proved is that they are unable to be other than against themselves. They can't help it. Anger is believing that they are being made to be against themselves, and it should not have been necessary for it to have happened at this time. They believe that not only are they against themselves, but it was caused by their not admitting or expecting to be disappointed at this time. Anger is feeling wrong for not expecting to be wrong.