From "The Walking Dead: Tell It to the Frogs (#1.3)"
[after Rick announces he's going back to save Merle
] So you and Daryl, that's your... big plan?
[Rick turns and stares at Glenn, who dreads what he's about to be asked
] Aww, come on.
You know the way. You been there before. In and out, no problem, you said so yourself. It's not fair of me to ask, I know that, but I'd feel a lot better with you along. I know she would too.