5. Kill Your Wife When You Have The Chance
We were all rooting for Morgan, weren't we? After all, other than Rick, Morgan and his son were the first people we met after the apocalypse. And there haven't been many scenes more poignant than Morgan being unable to shoot down his walker wife in the first episode. So, understandably, we were all thrilled to see him still alive and (kind of) well in Season 3. But hang on a second! Where's Morgan's son, Duane?! Oh. I see. Morgan's wife bit him. So Morgan found out the same thing Hershel and the Governor did: that keeping loved ones 'alive' in their walker form is inevitably going to end in tears. After the events of the first episode, Morgan would have had many more opportunities to kill his wife, and his hesitation eventually cost him his son, too. But also, it's a different kettle of fish when the walkers are on the other side of a sturdy wall; it's not the end of the world (ahem) if you don't kill them immediately. But surely when she got close enough to bite Duane, Morgan would have then had the bottle to put her down? Although, maybe he didn't see her coming. Which brings us to our next point...