ANDRIJ MELNYK, the Ukrainian ambassador in Berlin, did not hold back. Mocking Ritter Sport’s advertising slogan, he tweeted on March 29th “Quadratisch, Praktisch, Blut” (square, practical, blood), replacing gut (good) in the firm’s slogan. A couple of days later Dmytro Kuleba, Ukraine’s foreign minister, called for a boycott of the maker of chocolate snacks tweeting: “Ritter Sport refuses to pull out of Russia citing possible…