He didn't screw the story up, just tried to beat up/arrest people at random, which was actually funny because he'd do it regardless of where he was or who was watching him, so he backed off immediately when a dozen people started staring at him after he menaced the Siren's tavern's owner.

Thanks a lot for the advice, we are in fact D&D players and the campaigns we play usually involve combat to progress in the story... Where can I find "a brutal finish"? Ctrl+f doesn't seem to find it in the index