Summer’s over and kids are back in school – reading, writing, and, increasingly, juuling.

Some are vaping right under our noses – on school buses, in cafeterias, bathrooms and bedrooms – using slick little Juul devices that look like harmless flash drives but are anything but.

Indeed, juuling is turning unsuspecting Main Line teens into nicotine addicts – one surreptitious, sweet-flavored puff at a time.

Seems even the “smart” kids are doing it.