Justin wasn't potty trained, and he had unusual repetitive behaviors, such as switching lights on and off for extended periods of time, or washing his hands over and over.
One time, my mother was emptying out a load of laundry into the washing machine, and she heard this strange noise and looked and saw that my father had taken the clarinet apart piece by piece and hid it in the dirty laundry.
In the first stage, normal devices are outfitted with "smarter" features, like advanced cruise control in cars or a washing machine that can sense the level of dirt in water and react by adjusting its wash time.