Just reading some of the weekend's IMCH threads. I'm terrified of a DNF. I want to be confident when I post my entry that I CAN finish. Obviously you can't predict what'll happen on the day but to me it's a lot of time and money to waste if I'm not going to be physically capable on the day.
Not very piratey, as it puts the emphasis on preparation and training, but I guess I'm a rebel.