The real moral of the story is this.......You cant spend what you don't have. You cant plan your payments around money you might have,....you have to be more long range than that. You plan your payments around unforeseen outcomes that MAY happen to you in the future. You plan for worse case scenario instead. If you cant make that payment in a worse case scenario then dont borrow the money. Too many people plan their financial futures around best case as if the party is never going to end. That's stupid.