High_Gravity
Belligerent Drunk
Actually, I think they pretty clearly attempted to show that Shane was losing it. Look at the scene in the barn before he let the kid go.....the head slapping he did before putting the gun to the kid's head, the panting, I think he was even drooling a bit at one point.....all of that pointed to a man who was losing control of himself. And, of course, his actions afterward pretty much screamed unhinged. Thinking there was any chance of getting away with murdering Rick and returning to the group, after everything that had gone on before, was pretty loopy. The haphazard way he went about it didn't help, either. No, IMO, the writers/director very much were saying that Shane was not entirely in his right mind in this episode (and really, leading up to this one).
Now, Shane wasn't always wrong. I just think the idea was that while he might often know the right answer to a problem, his inability to get others to agree with him, coupled with guilt over killing Otis, coupled with his obsession with Lori, led him to finally snap.
At the end/last night? I agree . . . but generally speaking I don't think he was bonkers. When he blasted the walkers in the barn he did what needed to be done and he did what no one else wanted to do. Had Shane been with Rick, Hershall and Glenn when Randall and his buddies were blasting them? Shane would have popped Randall instead of dragging him off the fence. I'm not sure how guilty he felt about Otis because that was also necessary in order for him to keep Carl alive. To me, anyway, it was more of a sudden snap last night rather than he was nutso all along. And yeah, he may have gone about getting people to see his pov poorly but his actions did save people's lives.
I still don't get the whole obsession thing with Lori. They made it clear in previous episodes that there wasn't anything between the two of them until after Rick was in a coma in the hospital and they thought he was dead. Unless there was on Shane's end and I missed that. I also didn't like how Rick ended up treating Shane . . . it was as if he was talking to a child (it's my way or nothing, you will do as I say, yeah Shane is coming around is what Rick told others) rather than to his partner/adult. It often seemed to me that he spoke to Shane as a child and to Carl as an adult.
Otis could have left Shane to die and didn't. Remember, Shane was injured. He could have just as easily given himself to the walkers and let Otis take the life saving equipment for Carl. Nope, Shane was evil.
Well Otis was the one who shot Carl in the first place, why should Shane sacrifice himself for Otis's mistake?