Minutemarch, I have been finding your posts very insightful and I've been pretty much agreeing with you, to include what I quoted here.
Thank you *shuffles feet. Looks at floor*
Though, here, I'm finding such wonderful insights at every turn, from everyone.
It's all Moore's fault for making such interesting characters.
Plus my insight into Rorschach's feelings about his mum come from personal experience, so that's kinda cheating.
As for the beans, I think he could just about justify stealing the beans. They were a necessity, he had to eat, and beans were likely the cheapest sort of food he could find but the electricity to heat them up? That be a luxury and I don't think Rorschach could bring himself to steal a luxury, not at that point.
Later he works his way up to cereal and sugar cubes but it never get's over the top. It clearly only takes what he needs (well, plus the sugar which he must feel he needs too), and, at this tentative first re-introduction, it's almost like he was trying to make the least impact. He needed Dan to listen to him and he didn't want him to be distracted by the fact Rorschach had broken in and had then eaten $100 worth of meat and the cake he'd make Mason for his birthday.
I suspect, at this first visit, he may have done what he would have done in the house of a neutral stranger and when their relationship consolidates he feels more comfortable helping himself to stuff. He knows Dan can afford a few extra boxes of rolled oats.
Plus, try picturing Rorschach cooking, stirring those beans in a pot. Does it make you giggle too?