[MannyLopez]

It depends on the severity of the illness and how long untreated.

The number one danger is those that suffer untreated depression (one aspect of bipolar) is suicide. Bipolar kills but not in the media sensationalized way. Suicide kills people often because there's not enough awareness of dialing 911 regardless of stigma that the person is in control of themselves.

Next danger is psychosis due to mania. An unconscious mind takes complete control of the drivers seat one can be partially aware or not aware at all. It's again not so much in the media sensationalized way, but the outrageous behavior gets noticed and sometimes a person gets killed by authorities. (Like the recent slaying of a bipolar by US Air Marshals.) Or just by driving in the condition, etc.

It can get so far as catatonic (no unconscious or conscious mind at all) but that's rare nowadays with medical treatment. Again dialing 911 for an ambulance for outrageous literally insane psychotic behavior. An ambulance will come far before any laws are broken.

The real danger to psychosis is brain damage. I would cut off my left hand to get my memory and concentration back. Had the illness been caught earlier, even 24 hours, I would have not suffered so.

As far as dangerous to other people, only homicidal people are like that.

And wild rides. Again every person is different, and personality and support plays a large roll in it. Those who don't have a support system are very likely to relapse.

Thanks again for the question. I will be checking again tomorrow.
Sincerely,
Danette