Blahh!!! How boring ;)
I work for the school system, and I take 20 scouts camping every month. Even if I i come back with 19, that is 19/20, or 95%, which is a solid A on anyone's grading scale.
You set your standards too high.
Glad to hear you had fun in spite of the challenges. Oh yea, and glad to hear everyone made it out in one piece.