Some years ago, a group of friends formed a ND Subway Alumni club. They would meet weekly during the season (Tuesday nights at a local restaurant) and discuss the previous and upcoming games. There were no dues, they didn't sell anything, it was just a bunch of guys who loved ND, especially the football team.
Then, the unthinkable: they made up business cards with their names on it, Had ND logo, club name, and their own name - with their "title" (which were all somewhat humorous, such as president for life, athletics supporter, etc)
Somehow, ND got wind of it - and issued a cease & desist letter. Group forced to disband. End of story.