For those random encounters on your list you were wondering about-
the animal attack, catching the criminals, and i'm pretty sure the horsebreaking job also, you get 5 fame points. not much, but considering the encounters are pretty easy. all the lame ones might be that way.
For the random encounter with the guy who "wants to know if you'd like to make some money". i made the mistake of being curious enough to see what happens, and what happens is -100 points. i keep seeing him in chuparosa, so if you are trying to get the lowest honor, try to run into this guy. you can shoot up nuns next door at the same time in las hermanas. what isn't cool is that if you reject his offer and walk away, you don't positive honor for it.
when you see the random encounter w/the woman is luring you to the bandits with the stage coach, i know you get decent honor points if you spare her at the end. i want to say 50, but maybe its 20. its worth letting her live if you are trying to get the highest level.
i didn't see these on your list, so i thought i'd help out.