"No selfie" signs from the Russian Ministry of the Interior, part of a
Russian safe-selfie campaign leaflet.
Accompanying article from Conde-Nast Traveler.
(I think I'm giving nothing away by summarizing the article as "selfies are more dangerous than sharks".)
ETA: two images of the pamphlet, with explanations in Russian:
ETA: Thanks to SO, I now have a link to the pdf.