When the home team loses, auto collision rates increase around NFL stadiums. This finding is the result of a study by the Highway Loss Data Institute. The Institute looked at insurance collision claims in zip codes for 31 NFL stadiums and zip codes nearby.

The researchers found that claims went up on days when home games were played. This may make sense due to the large amount of traffic around an NFL stadium on game days but reasons behind these crash claims go deeper than that.

Not only did claims go up on game days, there were big differences based on whether the home team won or lost. When the home team won, the crash rate increased by 3.2 percent compared to days when the team was out of town. When the home team lost, the crash rate was 9.4 percent higher.

What would explain the higher crash rate when the home team loses? Driving safety experts have long known that driver emotions are the driving force behind car crashes. No matter the emotion, any emotion, whether good or bad, that can take your mind off the road can lead to a crash.

Drivers, who may be elated by a win and in a celebratory mood, may not be devoting their full concentration to the road ahead. Drivers who are upset or angry by the loss may also be giving less attention than needed to the road ahead but their anger can also make them impatient with other drivers. Their anger and frustration may also lead them to take chances they might not otherwise take.

With the Super Bowl approaching, no matter where they live, fans all over the nation will be attending Super Bowl parties, either at private homes or sports bars. Even though the teams involved may not be the home team, ardent football fans will root for one team or another and passions will be high. Alcohol, which is a depressant, may be involved, adding to the anger and frustration for fans of the losing team.

Drivers need to be aware of these emotions and the effect they may have on their driving. If you bet on a team and lose, your anger will most likely be even greater. Spouses or partners of rabid football fans may want to take over the driving duties after the game regardless of who wins or loses.

If alcohol is involved in your Super Bowl plans, make sure you have a plan for getting home either with a designated driver or by calling a cab.

One team has to lose and that means, unless fans can put the game behind them and concentrate on the road, other drivers who aren’t invested in the game will be in danger too.

Read more: Home team loss boosts collision claim rates around NFL stadiums