When I walk around here, I carry spray.
As a resident of LA county, I cannot hold a CCW. Probably good for them.
We have had bouts of dumbasses riding around in cars with paintball guns. Most homes have "rings" that record and most everyone has a cellphone that records video. The homes in front of me have surveillance.
Some of them have been caught.

Would I shoot them for getting hit with a paintball. No. That seems excessive. I'd get my phone out and record the plates.
Taking a life is more than what it's worth.