Did you know that there is a repellent for teenagers, used by storekeepers and other such fascists? Yes, the device, called the Mosquito, operates by emitting a high pitched frequency that has been found to be audible only to those roughly 20 and under. Older people can’t hear the sound.
What is the most interesting twist in this story, however, is that teens have figured out a way to utilize this “weapon” to their advantage. They are able to install the frequency as a ringtone on their cellphones, and thus now can receive cellphone calls in class without their teachers hearing the ring.
Now it’s not just class warfare; it’s generational warfare.