My pet peeve is the misuse of mental health terms, such as schizophrenic and bipolar. People often misuse these terms to mean anything from being ambivalent to having Multiple Personality Disorder, a very rare psychiatric disorder. The thing that unites all the varieties of schizophrenia is being out of touch with reality, as in having delusions, or hallucinations (often audio). Bipolar Disorder, formerly called manic-depressive illness, is a condition in which a person has mood swings, and is sometimes very depressed, and sometimes very manic--kind of like being on speed. These mood swings generally take quite a while--weeks or months--to swing between the two states. If a person's mood changes suddenly and frequently, we say that their mood is labile.

Mary McCaffrey, aka Marymac, enjoying feeling like a Social Worker, instead of a receptionist/housemaid!