If you really want to get bad honor just go to saint denis and shoot people. [NEXT UP - HUGE SPOILER, SO DON'T READ IF YOU DIDN'T FINISHED THE STORY] The game is trying to give you opportunity to end Arthur's story with the good ending. On my first playtrough I wanted to be so good to everyone, I've completed every optional honor-related mission, and ended with maximum good honor. Getting to the highest honor with that attitude isn't really hard, BUT. On my second playthrough (with all missed achievements) I've become an outlaw, and started shooting everyone in almost every city. It isn't hard to get you honor to the lowest level, but trust me, even with these opportunities, it's hard to get to the top :/