People like FD intentionally provoke anger through their actions. FD jogging, grocery shopping, etc., irritate otherwise well-meaning souls to yell insults, throw small items or, even, physically attack him. FD can consider the attack "a win" because it creates sympathy for him and justifies taking security measures. For example, leaving the country - it simply is not safe for him.
A shrink once told me, "First thing, don't react. You don't know why the person is acting this way and what reaction he wants."