I mentioned this topic the other day in my thread about getting motivated in the morning. There have been more than a few days where I have my gear on, ready to taxi out the door and all of a sudden.....damn it.

By the time I'm done, the launch window has past. Commute aborted. Where are those damn car keys.

The worst case is when you just know the bomb bays are full, but you just can't the doors to open. So you have to sit around the hangar and wait.