If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong. Corollary: If there is a worse time for something to go wrong, it will happen then.
Guy 1 " We need one soldier from the company to give up their flight back to the US, and stay in Afghan."
Moniz " Don't worry, you know it will be me."
Guy 2 " Don't worry there's 80 of us to chose from."
Guy 1 " We picked Moniz."
Guy 3 " Damn you just got MONIZED!!"