Season 3 has great potential.
Couple of thoughts:
The yard scene- Agreed they should have brain poked them through the fence. Waste of bullets!
Next, walking down a dark hallway that is potential full of walkers, that will back you into a corner at some point, not a chance! How do you spell way? W-A-Y what about the F? That's right there is no F-in-way?
The walker that bit Hershel . . so now they have to worry about walkers that fake being dead? Or that sit and wait for their victims to walk past them? Unless the walkers can evolve I don't buy it. It bugs me.