I catch the bus some days to a place where I work. Share the bus-shelter with a bunch of teenagers (year 10 or 11, not sure), in the uniform of a well-thought-of and 'desirable' local comprehensive.
During the fifteen minutes or so that I was there, the only time they stopped spitting, smoking or swearing was when they had their tongues down each other's throats.
I am probably a boring old fart but I just had to share this.