This is an issue that affects us all. And one we need to take VERY seriously.
Every drone operator out there (US or otherwise) need to have a plan of action when someone starts to come up to you. Planning ahead can help keep the situation safe. You have to be educated. It may literally save your life.
Mine is to deescalate the situation as much as possible. I also fly with a VO.
I'll speak specifically of U.S. laws here. Other countries have different rules. But some of this info is good for everyone. And a firearm doesn't have to be involved.
First, download the print out 18 USC§32: Destruction of aircraft or aircraft facilities (
https://uscode.house.gov/view.xhtml?req=(title:18 section:32 edition
relim) OR (granuleid:USC-prelim-title18-section32)&f=treesort&edition=prelim&num=0&jumpTo=true). That is the law that protects UAS operations and operators from being harassed and threatened. UAS are considered aircraft as per the 2014 NTSB Law Judge ruling in Pirker v. Huerta.
That paperwork is likely
NOT for the person doing the threatening. It's for the LEO that responds to the call.
Here is my suggested way to handle this situation.
First, odds are the person is just beating their chest and won't do anything. But don't assume.
Explain to them that you are flying, and need to pay attention to the drone for safety reasons. Explain that you'd be more than happy to discuss this once you land. Tell them you'll finish what you're doing and talk afterwards. Ask them to please back off so they don't get hit if the drone needs to perform an emergency RTH (that usually makes then stop and think about how this is going).
If they insist on bothering you, tell them to call the cops if they're so worried about things (this is where having a copy of 18 USC§32 comes in handy). Tell them that if they show up before you leave, you'll be very happy to talk to them. If you're ready to leave before they show up, tell them to take a picture of you and your license plate. When they take a pic of you, give them a big old smile. Look very happy. It will actually unnerve them a bit.
Do not be confrontational back to them.
When I am in a situation where I am uncomfortable, I actually have a body cam in my truck, and I wear it. I turn it on before I even launch. Some people also use GoPros for this. In a pinch your phone will work too, but it's difficult to fly the drone and record with your phone.
I also carry bear gel, but check your local laws about the legality of that. Here in Colorado, it's 100% legal. I
DO NOT suggest that if you're not willing to use it. I also strong advise against carrying, even if you're CCW.
Remain calm, attempt to control the situation. Remember, odds are that you are the most educated person in the situation when it comes to drone laws. Even once the cop shows up.
If you see a weapon, or they are overly aggressive, land immediately and get in your vehicle. Call 911 and tell the operator you are being threatened. If a weapon is involved, mention that as well. The cops will get there ASAP if a weapon is mentioned. Stay on the phone with 911, and give them as much of a description of the person as you can, including describing the firearm.
If it escalates to a discharge of the weapon, you need to also file a report with your local FSDO. Call them and report a violation of 18 USC§32. A great resource for this is from the National Agricultural Aviation Association. They have a checklist for when someone shoots at them (it happens much too often). Download this and keep a copy with you:
https://www.agaviation.org/Files/security/agaircraft-shooting-checklist.pdf. This is specifically for Ag pilots, but we should follow the same checklist.
We need to have our heads on a swivel when we fly. There are crazy people out there who fear what they don't understand, and unfortunately, drones top that list right now.
I hope this helps.
Fly safe!