He was only a child... What did you do, monster?! He was my friend, and your brother, and you killed him!
D-don't worry, I can fix you, I will fix you...
Nothing is clear until Scott states so people (which is likely never lol) so all these statements conserning the bite are on a level of a theory. As for the artwork well done, @julisnivy! This is exactly Nightmare Fredbear as I remember it.