All very good and perfectly serviceable ideas, when dealing with an ordinary person, that is.
Just looking around, you get a glimpse of your SIS's influence. She is politically savvy, and knows all the secrets of government. Little tricks, like subliminal messages, propaganda, mind games, that get in your head and change your mind for you. Even now you can hear her commands drifting through the air from her hidden speakers.
A high pitched voice says "Stay in your room." This is but the first level of the controlling frequencies, you have learned how to hear it consciously, but the rest are still imperceptible to you. She knows this, to assume she doesn't is to insult her intelligence. These days "Stay in your room" isn't a command.
It's a dare.