I had a bad beat on a SB prop before, I had the Bills under either 3.5 or 4.5 sacks(I forget the exact line) vs. Washington for a nickel, and one of the plays counted as a sack(lost bet by .5 sack).
Well, one of the plays labeled a sack, was a pass deflected by a Defensive Lineman back into Kelly's arms then tackled behind the LOS..in my book that's a completion for negative yardage, not a sack..stat-****er!