I disagree completely, I don't think Rick is looking to kill anyone, Sasha isn't nutsy, she has PTSD, I think they all would considering what they have been through, and I don't think they are too stupid to do anything, I imagine taking the prison was ALOT harder than the people putting walls around the town. You can tell by the way they act they have no clue how to survive on the outside. Everyone should be armed at all times, Rick is right on point with that. I think they will be attacked by the people carving stuff into heads by the end of the season, something will happen setting up Rick as the new leader, not because he takes it by force but because they need someone with Rick's experience to lead them.