Advertisements Only if you are naive enough to believe everybody who tells you that this place is safe, without checking it out to confirm for yourself. At the time they gave up their guns what had they seen? One poorly constructed wall with the supports on the outside. Not so easily breached by walkers, it's true, but trivially breached by the Governor or anybody like him. Rick had the Prison. It was secure, right up until it wasn't. The lesson that Rick has learned, the lesson of all the previous seasons, is that the walkers aren't the most dangerous threat. They can be handled. They are annoyances, dangerous if you get sloppy, but not the greatest threat. People are a far greater threat. And people who pretend to be your friends are the greatest threat of all.