There's a proverb in Russian: "laugh without a reason is a sign of foolishness". I don't know where this saying came from, but it's broadly accepted to tell it to anyone who smiles. I was always told this in school, since I smiled a lot. And I'm happy it hasn't had any affect on me :-)
Its not proverb, its teasing rhyme.
And this is piece of journalista shit.
All much much simpler - you just need not to smile in soviet country. But now we come to shiny capitalistic future, and people learn to smile to their clients :)
