Obviously they was wron because if there was going to be a disaster there will be sighs like earthquakes where their not notmally occuring there and somepeople think that there was going to be somesort of zombie apocolype ( which would be kinda cool XD)
So I'm thinking lates make a joke of it and everyone make a senario (can be as ridiculous as you like) for the end of the world for example
E.g the world will end when evrything turns to butter ... Wait... That's a good thing :3