The words of an evil man echoed in SpringTraps's mind. He missed the good days when he was on stage with FredBear and played for children. He looked around and saw his banjo broken. He played that up stage.
"Oh no... I-It's broken," SpringTrap said to himself while picking it up. He felt like he was going to cry...
You're not Bonnie Bunny, Chica the Chicken or any of those cuddly creatures. You're supposed to be a monster.