In another memorable game between the Chicago Bears and Green Bay Packers, this time during the 2007 NFL season, Quirk grabbed Packers linebacker Nick Barnett around the neck and pulled him to the ground during a scuffle between the two teams. Following the game, Quirk was told by league officials privately that he went "over the line" in restraining Barnett, but he would not face disciplinary action. Mike Pereira, the league's director of officiating, said, "should refrain from similar techniques when trying to break up a potential skirmish." At the time of the incident, Barnett's agent withheld from filing a formal grievance with the league in exchange for a public apology by the league that Quirk's actions were wrong. Joking about the incident, Barnett said, "I got in a choke hold, I couldn't really breathe a little bit. [Quirk got a good one on me. I don't know how he got under that face mask, but he got a good hold on me." On December 28, 2007, the NFL announced that Quirk was fined an entire game check, US$8,150, for his actions against Barnett and for an earlier altercation on December 16, 2007 with Atlanta Falcons fullback Jason Snelling on a kickoff return.