And I too, lack the words to express my disbelief.
And when I asked a 16-year-old if that would EVER be a normal thing to do, she said, "Maybe in middle school, but even then it would be childish."
The good news is, if this had happened in some normal way, I might have got my feelings hurt. As it is, it's so ridiculous that I can't even come up with something stronger than amused disgust. So that's a bonus, I guess.