What do you think of when you hear "mental illness"?

There are many types of mental illness, i.e., depression, bipolar disorder, schizophrenia, borderline personality disorder, anxiety disorder, post-traumatic stress disorder, etc. There’s a whole list of phobias.

People with mental illness don’t easily fit into categories, but popular culture is rife with stereotypes. There’s the psych-ward patient shuffling along. There’s the dangerous lunatic locked up in a prison for the criminally insane. There’s the eccentric spinster with 500 cats. There are more generalizations.

How educated do you feel yourself to be about mental illness? Is it a subject you give much thought to?