Nigeria, Jan. 29 -- I find Calvin and Hobbes' cartoon strips as enjoyable as they are absorbing. The dialogue, as with most successful such strips, is heavily nuanced. You often do not have to step too far from the face value of the main plot to mine a deep vein of commentary on received opinions. But in Calvin's case, Bill Watterson (the cartoonist) goes over the top in his rendition of the characters. In part, I guess this follows from the fact that Calvin's interlocutor, Hobbes - the tiger, is as imaginary as a cartoon character can get. Regardless of the reason, nearly always, Calvin's facial expressions are priceless. The price in the strip, which had me read it more than once, yesterday, was all of one word: "Stoolie". Susie, Calvin...