I have had to threaten to shock someone more than once. When they heard the defib charging and I direct the paddles in their direction, they chilled out. I have thrown pts out of the truck on the roadside before and called for law enforcement as well. You do what you have to do.
We have AMR in our area, but they hire anyone with a pulse. Lots of duds on their trucks. They have lots of good ones too, but seems like we get all the bad ones. If it doesn't pan out there, come to Ms and you can get a job quick. Big medic shortage here.