Someone posted the lyrics to a song by the Atlantic Rhythm Section yesterday, and I "heard" it for the rest of the day.
This is one of the problems with restricting the civil rights of people with "mental illness": there's no agreement on what constitutes "dangerous".
And, everyone is entitled to due process. That decision can't be made by someone, with no opportunity for a fair and speedy appeal.
[There are similar problems with protection orders, which are routinely abused in divorce proceedings]
“So, if I can’t get a particular tune out of my head, am I having hallucinations?”
Depends. Were you just remembering, or were you sitting 10th row, center seats at an ARS concert?
Also, if the voices are more common than your thoughts, as the title says, that might be a problem.