....and it fired as the ball was being snapped for a 51-yard FG attempt, which was missed. The story I heard is that the ROTC guy had someone else, a friend, or contest winner, or something, who was going to fire it that time. The person was told "When I tell you to pull it, pull it.", at which point the person immediately pulled it, not waiting for the promised command.
As I have heard, Mullen had some choice words over the incident toward the ROTC people.