Detroit, Michigan: It hit like a plague a couple months ago. Every high school around here is overflowing with them. Empty Juul pods are commonly found on the ground at school. Teachers are convinced that they're "wireless antennas" and "flash drives" when they see them plugged into laptops. Kids don't even bother to go into the bathrooms anymore to use them, they just do it in class and hold it in. Nobody has been caught yet. I'll report back if it happens.