In 72 Hours

In 72 hours the world will end from a Giant asteroid colliding with Earth. This news is released with the public, what will they do in the last 72 hours? Some will enjoy the last 3 days with their family others, will do the most sinister things. Since all is broken down there is no fast food,emergency response or anything else, everyones off work and no one cares about anyone. What could go wrong?