Originally Posted by Joffrey
What was with that lone zombie/person walking in the field that Shane saw?
I think the cops w/ no marks was to introduce the idea that there might be other means of infection and when Rick was thinking about leaving he saw the two of them there, in uniform, and was reminded of his and Shane's history/relationship/brotherhood of the cop.
I think the walker was party an indication that Shane is walking alone but also becoming more and more like a walker, willing to kill for no reason, loosing his humanity. In the scene with the fight between Rick and Shane right after Shane throws the wrench we catch a reflection of Shane in the broken glass and he looks like a walker. In fact I thought it was
a walker for a sec. right before the actual walker broke through. Shane is totally losing his shit.
Re the standard Rick v. Shane argument, Tori (? Ricks wife) actually had it right. It takes a lot of people to survive and the secondary jobs are just as important as swinging your dick around killing things. You've still got to eat, bathe, collect fuel, maintain shelter and warmth, and so on. Having people to help is important in the best of times, in a world filled with millions of walking dead it would be crucial to have a group working together. Shane's way would totally destroy any group and leave him fighting alone. It might work for a while but then some walker would get him while he takes a shit, or cuts wood, or is under a car trying to get oil or a spare part.