Andrea has also been hanging with Michonne. I'm betting that is a good self defense education right there.
I think the actres who played Andrea was in the Mist, and Scott Wilson (Hershel) was the suicidal doctor in Exorcist III
Jeffrey DeMunn (Dale) was also in The Mist
, as well as The Green Mile
AND The Shawshank Redemption
. DeMunn and Laurie Holden (Andrea) were also both in The Majestic
. These four movies were all directed by.... Frank Darabont.