crazy comebacks seem like a good addition to this thread, too. here's one:
down 41-17 with 3 minutes left
i was looking for a comeback i saw a while back about a high school basketball game. one team was down by 18 with 1:30 left, forced OT, and won. i'll try to find it.
this video isn't that improbable, but is ridiculous:
sam mcguffie