Co-worker sent me this...is this for real or just a joke?? Anybody hear about this? An nfl.com article stated: â€śBecause of the antics of Jaguars mascot Jaxson de Ville, a rule was instituted that all NFL mascots must stay behind the six-foot white border around the field at all times during games.â€ť What incident is this alluding to? Jaxson spent a little too much time on the field for Colts President Bill Polianâ€™s tastes during the Monday night game on Oct. 22. Polian filed a complaint with the league.