I don’t know for sure, but I think the walkers are grouping together and pushing against the wall in at least one spot, which is causing blood from the ones in front to come through the wall. That’s why Rick and Tobin were trying to brace the wall there.
Right. I’ve said it was because they were crushing each other against the wall and eventually would create a ramp up.
But now it’s a moot point.
I think this season will end somewhat like the season when the walkers over ran the farm. We can hope that the group doesn’t get separated like then.