Not sure if it's a bona fide bug, but I just saved the same boxer guy from the mob, in exactly the same way, for a second time. Didn't really disturb my campaign ... but it sort off broke the immersion factor, to step through the exact same dialog with the same dude that way. I'd recommend that these hand crafted, unique encounters be, well, unique - at least within a given run-through anyway. Love them otherwise.