In/Out?

I remember a game I used to play in Modern High School when I was really young. It was called Andar-Bahar. All the players had to stand in a line and there was a 'caller' who would either say 'Andar' and everyone would have to hop forward and if she said 'Bahar', you had to jump back. If you hesitated or stumbled, you were out. The winner was the one who could move in and out the fastest.
Unfortunately or fortunately, life does not decide the winner like that. You can't move in and out of lives at your own will. If you're in, you're in. If you're out, you're really out. And more often than not, there's no coming back in after that...