[ Things Mark is not afraid of: Wednesday (unless she is holding her axe, and even then, he's more afraid for other people), turtles, reptiles, ghosts, bugs, kind of famous people since he did grow up around Earth's top superheroes,

Things Mark is afraid of: talking to cute people, everyone fucking dying ]

Oh... I guess that explains some of why you wouldn't want to go out in nature, huh? [ A small, sympathetic laugh. It's all coming together! ] Well... I can't protect you from famous people, or, um, ghosts [ ... actually? maybe he could? could he punch a ghost— ] but everything else? I've got you. Just say the word.