This was their daily routine in the comics, not sure why it's been dropped for the show but they would always go down and stab the walkers that got caught on the fence in the head. Other than Tyreese being also ruined now (comic spoiler left out) this seemed like a good episode. I just think of Woodbury as a Lost like alternate/time travel reality to the interesting things that I get to see between the characters that I have read about and learned to understand, but I'm also a complete sucker for that Tom Waits song that Hershel's daughter sang at the end (there's one of the best slide guitar players that I've ever heard in my life here in town, spent many a sad bastard night with a nice scotch and some friends listening to that guy singing 'Hold On'). Probably a lot of variables sugarcoating this one for me but, aside from the shitty Woodbury parts, good character development from the core cast in this one.
Since it's so far away from the comics now I'm going to bet on Hershel, Tom Waits singing daughter, Carol and Merle dying in the inevitable prison raid