I agree with Lard4Hire. Know what your rights are and operate within them.
When I was young I got into a car accident and the adult in the other car was trying to bully me into doing something I understood to be incorrect. I stood my ground which really upset the other man and when the police arrived and agreed with me the man went ballistic. It was very satisfying.
If you have the right to use the street and public property to run your RC's then don't worry about a crabby neighbor.
Tekno SCT 410.3, Arrma Kraton, Traxxas Slash 4x4, Tacon/LC Racing Rally/SCT/MT x3, Losi Mini 8ight, Carisma M10DB, Axial AX10 Deadbolt, Vaterra Ascender '72 Bronco, Thunder Tiger Kaiser XS, Sky RC SR5 Super Rider