New Orleans Saints fans are accustomed to zany events, and to heartbreak.

They aren’t accustomed to zany triumphs. But that, blessedly, is what they got in the Superdome in Monday night’s season opener, with the Saints blowing a game they seemed to have in hand, only to then win after they seemed to have lost. Even for fans jaded by 53 years of bizarre occurrences, this game was strange enough to leave them, at first, more dumbfounded than wildly exuberant.