Something I just posted to another group:
At the end of the 2012-03-11 episode, we see a herd of zombies coming out of the woods because of the gunshot.
At this point, the worst thing Rick and Carl could do is run to the house.
What I would suggest is Rick tell Carl to go down on the ground and then Rick could lead the zombies off, back towards the highway, making a lot of noise, and maybe firing the gun from time to time. Hopefully, they would follow him. But I'm assuming that a zombie's hearing is better than his sight.
Then, the others in the group could follow and use their pitchforks and machetes to ambush the straggling zombies from behind, one by one. When Rick got to the highway, he could try and rig a car's horn to stay on, attracting the zombies there while he slinks off quietly.
Could easily run into problems if Rick tripped in the dark, or ran into another herd of zombies coming from the opposite direction. But at least they would have been led away from the house.
I wonder if they could "corral" the herd of zombies like they do cows or horses, and then kill them at their leisure? Kind of like the kill point in a slaughterhouse. Come to think of it, some compressed air-powered bolt pistols might be quiet and effective weapons against the Zeds. Especially if they could mount them on some type of shaft so they don't have to be in close contact.