Also searching for a Creepypasta

I read it a while ago, it involved this guy and his dog in the middle of a power outage via a thunderstorm. It talks about him walking through the house looking for his flashlight, hearing his dog's nails "clicking on the hardwood floor" while it runs and hides. He finds the light then goes looking for his dog, walking around he then sees him at the end of the hallway peeking around the corner looking petrified. He calls out to him, he just keeps staring, so he's like "okay, whatever" and goes back to his room only to find the dogs headless body, then hear the clicking again behind him.

Sorry if my explanation is a tad incoherent.

Thanks, guys.