Two Russian hunters meet. I shot a gigantic bear yesterday, says Ivan. Look at the hide!How do you find such huge bears? Sergei asks.Easy, says Ivan. You stand in front of a cave and whistle. When the bear comes out, you shoot.Weeks later the two meet again. Sergei is covered in bandages. Didn't you follow my advice? Ivan asks.Sure I did. I stood, in front of a cave and whistled, Sergei replies.And what came out?To me, says Sergei, it looked like the Trans-Siberian Express