Home crowd needs to leave the game if their team is getting blown out in 4th qtr

We've all seen it in real life.  If the home team is getting destroyed, the home crowd tends to leave the game early (maybe 30-40% of the crowd that actually attended the game).

For example:  If I'm down 17 and I throw an interception with 4 minutes left in the game, my home crowd should start to exit the stadium.