Back in my homeland, a grocery store chain has a sweepstakes where one lucky viewer can win $1 million if two kickoffs are returned for touchdowns in a single game. (I'd meant to post this when it happened but forgot about it)
Well sure enough in a game between the Winnipeg Blue Bombers and the Toronto Argonauts, one kickoff was returned for a touchdown. And so was a second one. Pandemonium ensued in the house of Karen Kuldys, thinking she'd just become a millionaire...
But there was a flag on the play.A block in the back negated the touchdown, and thus negated the million dollars. There were no more kickoffs returned for touchdowns in the game, and thus no million dollars.
I don't know about you, but even if it was the most obvious call I'd ever seen, I'd still feel bad if my flag cost someone that kind of life-changing money.
http://www.cbc.ca/sports/football/cfl/cfl-karen-kuldys-million-dollar-prize-1.4204710