Neighbors giving you problems, nowhere to turn? Mount a canon on your trike or flex wing microlight. Part way down this page of WWI aviation photographs is one of a cannon mounted in place of the engine on an aircraft.
I suspect the recoil from firing might induce some pitch stability problems though.
Ohh and don’t forget to update your weight and balance form after you finish mounting your canon. I don’t know whether this is considered a major modification by the FAA. Will have to get some advice on that.
Hat tip The Vintage Aviator via Trike Pilot Social