Safety in Freelance Modeling is priority one!
When you are bringing someone there as a safety precaution, please convey to them that they are only there for that. They are not there to direct, interject, or assist with the shoot unless asked for. A lot of people have not told the photographer who they are bringing and they end up calling the shoot short due to disruptions and comments made by the other person. Tell your safety person what you are shooting beforehand. That way there are No surprises when the shoot commences. Again, communication is key to make a shoot a smooth success.