Having re-watched the Locke eps, I am sure that the original Locke would just not have behaved in the manner that the new FS Locke would.
- He laughed when he fell out of the chair and the sprinkler started (very reminiscent of the island)
- He said to Jack: "they've not lost your father, they've just lost his body"
- The pushing of Ben to be principal.
I know this is supposed to be a different Locke than in S1-5, but it just seems very like the way he's playing MiB. He just looks so comfortable, like he is pleased to be home & wearing his favourite slippers. This just looks like MiB: buit how would that work?