January 26, 1986. The worst beating the sportsbooks ever took. For 10 days they kept raising the line on the game, but no matter what they did they couldn't convince enough people to Bet on New England. Books everywhere around the country sent money to be laid off in the casinos that they couldn't dump anywhere else.
It was the most lopsided betting on any football game in NFL history. And nobody will ever be sure exactly how much the books, both legal and illegal, lost that day.
BTW: The Bears won 46-10. So it didn't matter if you bet the game at 15, 16, 18, or 19 points. It still wasn't enough.