I think blowing a ten point lead at home with five minutes left in the 2002 Apple Cup when a win potentially puts you in the National Championship still leads the all time WSU blowing it category.
Missed the game, DVR'd it, planned to watch it, was out and about and heard some dude laughing about how WSU "Coug'd it", looked down at my phone, it had exploded, saw what happened, decided not to watch.
For the record, dating back to the days of the VCR, a team I want to win has never won when I've recorded it and planned to watch it later. The Seahawks are leaders in this category.
Tough loss, feel bad for the seniors. I'm ready for next season to start.