Judgement day is the day I die.
That is when the theif is coming.
Possible, but highly unlikely scenarios include some cosmic collision, earthquake or volcano eruption that destroys all life on earth.
Because those are highly unlikely scenarios, how could you ever possibly expect (or worse) teach your children that is what we should expect?
If you knew before hand the crap that they believe, you would run them off of your property with a shotgun
....just saying...