Have you ever read The Hobbit? 
It strikes me that if a gigantic planet hit us at 600 trillion miles an hour then hiding in a hole would be little use.You wouldn't even hear the bang.
That aside, I have just 4 places left in my air raid shelter for gullible needy individuals
I'm sure I've alraedy told you, but it's not in here, the OFFICIAL Planet X thread.

Planet X....IF it exsists, and is going to do what the 'experts' are predicting it's going to do, does NOT include it hurtling into Earth at 600 trillion MPH, but passing on its orbit close to the Sun, thus creating massive unprecedented devastating eruptions and activity that will in fact slowly boil the earth dry over a period of approx 3 months.
It won't be over quickly, it'll be a slow hot and getting hotter miserable end for all. seas will boil dry, and the whole place will eventually explode into a ball of fire.
There, on that cheery note, I'll go and lie under the sunbed.
