I don't see how Glen could even move with the weight of not only a dead body on top of him but a ****tonne of walkers. And there's no way parts of him don't receive even a single exploratory bite.
If he survives this it's a complete joke.
well, there is a lot of small things that happen here and there that make no sense or are not realistically possible. Glen may be alive or may be bitten, but he will defn show up next episode either way.