Well Gigi, anyone can swear out a mental health warrant at the mental health unit of the county health department, to the effect that they have reason to believe that the individiual is presently or about to be a danger to himself or to others, and the county is supposed to pick them up, right away, for a full evaluation. Following this, when the evaluation is complete and they are ready for a hearing, then you need the lawyer. This should normlly be in 1-2 days. The only other time I can think of, when you need a lawyer in an emergency, might be to get out of jail or when someone is doing something damaging to you but it is not a crime (in the process of commiting a civil offense)
I have heard of judges being woken in the night to sign emergency restraining orders to stop property being removed from the storage lot of a business when the apparent thief said it belonged to him. As long as there had ever been any business relationship or contracts between the owner of the business and the other party involved, then any dispute, even if it appears to be theft, is a civil matter until a judge rules otherwise.