If the fans in Buffalo learned one important lesson on Sunday night, it's that you should never leave a game early when Josh Allen is your quarterback.

With the Bills trailing 40-25 in the fourth quarter, thousands of fans at Highmark Stadium in Buffalo started heading for the exits and you can see that in the video below.

Once you leave the stadium at an NFL game, you're not allowed to re-enter. Every fan who left the building ended up missing Buffalo's historical comeback win over the Ravens . Over the final four minutes of the game, Allen led the Bills on three scoring drives. The first one ended with a touchdown pass to Keon Coleman that cut the lead to 40-32 with just 3:56 left to play.

After a stop by the Bills defense, Allen got the ball back and led another scoring dri

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