I think anybody who hurts animals, children, old folk or anybody smaller or vulnerable, should be shut up in a cage and experimented on.
There used to be many moons ago a right old moaner where my parents then lived, he moaned about everybody and everything, children playing in their own gardens, cats, dogs barking, where you parked your car, music, flag flying - so the neighbours got together, taped him and put it through a loudspeaker right into his bedroom early one sunday morning. We all stood outside his gate, whe the window opened we all cheered and waved. He left soon after!