What’s your favorite Stephen King recurring theme, or character, or concept, or word, or line that has transcended through multiple stories?

I think mine might be car accidents/drunk driving—I’m currently reading Pet Cemetary for the first time and the first person brought to the campus doctor’s office was in a horrific car accident. I’ve been in two car accidents in my life and they are downright TERRIFYING. King does such a masterful job at painting the picture of the actual event AND the aftermath of an accident. I know he’s done this is Misery and The Shining and Mr. Mercedes. What’s your favorite topic or person or theme or line that’s crossed multiple King texts?