While the dangos usually are not capable of taming humans, those who have eaten functional SMILE fruits are an exception, being susceptible to being tamed due to their part-animal nature. They place the user's wellbeing and orders above all else, even their own lives. The dango's effect is similar to brainwashing, and though the consumer seems to retain all their memories and personality, they also gain an undying loyalty to the producer.
This technique will not cause the user's cheek any harm, and since only the user is capable of creating the dangos, they cannot be forcefully taken from their body against their will.