When it first became really popular, I kept telling people it was called "seppuku", not "sudoku", with the hope that they would then go and ask people if they had the "seppuku" game.
To save some of you the google, "seppuku" is an old Japanese ritual suicide by disembowelment, one use of which was a part of the code of the samurai warriors.
So basically, I wanted people to go asking at a book store for the game of ritual suicide by disembowelment.
I always thought I should get extra bonus points for the irony that seppuku was often committed to offset shame... like the embarrassment of asking for a Seppuku game.