I can't help but wonder what would happen if you started a wank-war with a homeless man.. Would it become an epic struggle, with people forming a ring of a crowd, entranced by the surreal situation? What would the challenger even do? Take it too far?Could the hobo suddenly become disgusted at your 'head' on approach? And what would your mother say?
That's what I'm saying. Some people need to let go of fear and learn to replace it with better, happier emotions. For instance, OP could've been flattered instead.