I had this random horror AU idea of Dogman since its October.
In which Petey killed Knight and paralyzed Greg with the bomb. Petey has been enjoying the havoc he caused but also gets bored as there's no challenge anymore. One day he has a feeling of being watched, he catch glimpses of what he believes is a person in the shadows. Eventually the figure reveals itself as Knight but looking like he rose from the grave, head in bandages. Petey, of course, shoots him with a ray gun but it doesn't work because Knight just ignores the gun hole and oh gosh he's a zombie! It becomes a cat and mouse with Petey trying to get rid of him while Knight tries to kill him. There's a lot more details about it, feel free to ask about it if you wanna hear more.
I got this inspiration from The legend of Sleepy Hollow, Candy Corn 2019 movie, and the song Hide and Seek sung by SeeU.