Fnaf theories

FNAF 1

FNAF 1 is the first game. In the employees only room, you cannot see the room through the camera, but in gmod,
It has masks of the animatronics. In the name, it says "Freddy fazbear pizzaria'' it means its a pizzaria, but where are they making the pizzas? Are they delivering from some delivery guy? Do you heard about sparky the dog? He is often hiding in the door at the back stage, he also lost his right arm. But all of that is proven that sparky doesn't exist. What proves that is Scott really didn't add sparky, and sparky is not in your files.