Finally got caught up on the last 3 eps and I am diggin it. Some scenes were just too suspenseful. And Rick trapped in the house with the 4 or 5 rapists? Jesus. When I recognized actor Jeff Kober on the porch near the end, I thought, Uh oh. That guy never gets cast for a only tiny scene like that, so we haven't seen the last of him and his foul crew. Ugh.
And Lizzie! Holy crap. I'm leaning to believe she was the one who fed the rat/mouse through the fence to the walkers and later nailed the frog to that board.
I, too, got the possible autistic vibe about Eugene, too. He answered/responded in logical and matter-of-fact ways when he spoke. Lack of emotion displayed when the walkers were approaching, but admitting to heightened state when Abraham asked him later.