The NFL is getting more serious about conduct in the stands.

This year, its teams are requiring any fan who gets ejected from a stadium to take a four-hour online course before they are permitted to come back into the facility again.

The course, designed by psychotherapist Dr. Ari Novick in tandem with the MetLife Stadium security director Daniel DeLorenzi, focuses on alcohol abuse, anger management and crude behavior. A handful of teams have used the course over the past couple seasons, but this summer, as part of a review of their best practices, every team decided to enforce the course on offending fans this season.