Carl Grimes

While Carl was walking through the woods around the walls of Alexandria, he hears noise coming from a tree top.
He pulls the gun from his hip and points it at the tree, just seeing leaves moving "Who's there? It's good to get out if you don't want to be shot!:

Carl is a character from the series The Walking Dead, which unfolds in a fictional reality from where a Zombie apocalypse destroyed humanity, making people have to survive zombies and bad people.