Leave it unwound for too long and he will escape, eventually killing you.
Balloon Toad - He will appear once a night and summon a random character from his roster with an AI level equal to his.She will kill you when you have the camera up for a certain amount of time. When you flip up the monitor while the static is playing Taingle will get in the office and hang in your ceiling. When you hear her static in the office throw on the mask until it stops. She will enter your office via either vent. Taingle - She hangs out at Tails’ Curtain with Tails and Nightmare Tails.When you flip up the monitor while she's ready to attack she will kill you. Wait until she leaves to take the mask off. When she's visible in the office throw on the mask to let her in.
Toy Yoshi - She will start at the Toy Stage and enter your office via the Left Floor Vent.When you flip up the monitor while he's ready to attack he will kill you. Wait until he leaves to take the mask off. When he's visible in the office throw on the mask to let him in. Toy Mario - He will start at the Toy Stage and enter your office via the Right Floor Vent.When he comes in quickly throw the mask on to get rid of him. He has two poses in the Main Hallway before entering the office. Toy Sonic - He will start at the Toy Stage and take a rather short path to the office like in FNaS 2.If you don't do either of these things he will kill you. When he enters the office quickly flip the mask on or flip the camera monitor up. He will enter the office via the Basement Vent to the Left Hallway.
If you use the generator while he's there, he will destroy it, making it unusable for the rest of the night. He will occasionally go to the Power Room to mess with the generator. He will teleport around the building with laughter as his noise cue.