I'm a little late on this, but after rewatching the second to last episode, I still just can't believe they didn't shoot Merle. I mean, Merle yells, pulls out his gun, then shoots. A good 2 seconds or so for all that to happen. BOTH Glenn and Maggie have a gun pointed at his head and not only do neither of them shoot when this happens, they run away. It really doesn't make any sense.

