Good Omens - Neil Gaiman - Bog

They don't let you go around again until you get it right." According to the Nice and Accurate Prophecies of Agnes Nutter, Witch - the world's only totally reliable guide to the future, written in 1655, before she exploded - the world will end on a Saturday.

You could spend the time left drowning your sorrows, giving away all your possessions in preparation for the rapture, or laughing it off as (hopefully) just another hoax. Or you could just try to do something about it.