Carl’s Atomic Paw Shirt Share on Tumblr The Walking Dead Carl Grimes Atomic Paw T-Shirt Carl’s childhood ended quicker than a possum in Daryl’s crossbow scope, but you wouldn’t know it to look at his t-shirt. The “Atomic Paw” is Carl Grimes’ classic ringer t-shirt from The Walking Dead. It’s a statement piece that says, “I will not stay in the house.”. More tees you might like: Vote Rick Grimes Surrounded by Walkers Sheriff Grimes Blood Splatter Brick Grimes