User blog comment:TheFreddyFromThePizzaria/FNAF is NOT impossible guys!/@comment-25588272-20151123141142/@comment-26186871-20151123171741

"A Servo is a small device that incorporates a two wire DC motor, a gear train, a potentiometer, an integrated circuit, and an output shaft. Of the three wires that stick out from the motor casing, one is for power, one is for ground, and one is a control input line."

One is for power. Technically, servos THEMSLVES need power. If they remain imactive for too long, they run out of power, and thus lock up. I'll have to add that as Claim 6, because I didn't adress it here before.