I am more than sure that the end of the world will come one day but not in 21/12 .
Mayans did not prophesy that the world would end on December 21,there are many dates recorded on Mayan calendars which are well beyond 21/12.
The 2012 date was only found on a single Mayan inscription.Charlatans who created the 2012 Hoax are the same who made money from the Planet-X hoax (did we died on May 13, 2003). They use the story to scare people, then they sell books on how to survive. They make lots of money from this $hit.
Look at this
example It will come one day but not now.
But to be sure stay at home that day,i will.