https://apnews.com/3935a253393adb1d1e36940c35fc1302

Returning a kick or punt for a touchdown has never been rarer in the NFL with one coming on average every 30 games.

So when there's a moment like there was Sunday when Nyheim Hines electrified the crowd in Buffalo with not one but two kickoff return scores in the same game, figuring out how it happened becomes a key question.