If you’ve been to a Cubs game in Chicago in the last seven years, there’s a chance you may have run into Billy Cub, the unofficial Cubs mascot who takes photos with fans outside Wrigley. The Cubs introduced an official mascot, Clark the Cub, at the beginning of this season, and have been trying to eradicate Billy Cub for years.

Last year, the Cubs sent John Paul Weier, one of the men behind Billy Cub, a 100-page letter urging him to stop engaging in “unabated Mascot Activities.”

Weier and the other men that dress as Billy did not stop their mascot activities, and continue to be a staple at Cubs games. In April, Billy Cub got in a fight in a Wrigleyville bar, which was caught on video.

The Cubs have now filed a lawsuit against Weier and four other men, accusing them of engaging in “unsavory actions.” According to the Chicago Sun-Times, Billy Cub asks for tips from fans, though Weier has said in the past that the money goes to maintaining the suit and that he sees no monetary gain.

Via the Sun-Times: