instead of doing "right thing" and getting most XP, since Maximisers would not trade, you can't fix toaster for 'em etc, after you talk to Elizaveta you talk to another guy near safe. then go follow tracks and talk to guy near water tower, who wasn't there before I had patch installed (or just didn't want to talk to me)
Get Flinster's location, walk there, save Flinster from robots, persuade him to come with you
When you get back Manners will sacrifice him with two trucks, which is kinda awesome. you get the last chance to do the good thing - you can pass a few 10 level speech checks to make him stop.
but don't
Tori gets the croud and they chase Manners from the city
You then can get his head for Tori and also his white suit and pants for your most

ranger (same quest and location as to get Robinson's head). obviously cat litter is yours too
It is also a little bit bugged since all that time you can follow "Fake Rangers" and they all talk about Mr. Manners while his head is right there on a spike at city' entrance. Also if you got trading ticket from Mr. Manners for Rodia I think you will be able to get them trade with Oracle even if you killed Manners.