he is not attracted to men. Mroszak fought two boxing matches during his association with The Howard Stern Show. On April 27, 2001, he fought Wack Pack member Angry Black to a five-round draw and on May 31, 2002, he was defeated by Stuttering John by unanimous decision. On July 27, 2006, Mroszak was released from prison after serving a one-year sentence for tax evasion, and immediately went to Sirius Satellite Radio to visit Howard Stern. On August 15, 2006, Mroszak substituted for Sirius radio host Scott Ferrall, who was on vacation. In 2001, Mroszak filmed a porno movie featuring Ron Jeremy. The existence of the footage was questioned until Jeremy documented the production in his autobiography, Ron Jeremy: The Hardest (Working) Man in Showbiz. When Jeremy went on the show in 2007 to promote the book, Mroszak was confronted by Stern and crew about the issue. Mroszak contended that he directed the film but did not directly participate, but rather played "a Steven Spielberg type role" and that the film had been destroyed. On February 8, 2007, Stern questioned whether Mroszak could ever again be trusted, while Fred Norris described the porn antics as "a sign of disrespect." In 2009, Jeremy confirmed that Mroszak acted in the movie. On June 28, 2007, Mroszak was fired by Sirius Satellite Radio after claiming on his website and on the Opie and Anthony radio show that he was in possession of a Howard Stern sex tape. In a 2015 podcast interview, Siegfried mentioned that he had retired from radio after being fired from Sirius. Tax trouble Mroszak spent one year in federal prison for tax evasion. He was arrested after saying on the November 9, 2004 Howard Stern Show that he did not file a tax return in many years and would not resume filing until the U.S. government cured his Gulf War Syndrome. An IRS employee happened to be listening and reported him. Mroszak pleaded guilty to tax evasion in federal court in December 2004, and was sentenced to one year in prison and ordered to pay his outstanding taxes. On July 29, 2005, Mroszak was imprisoned at the Federal Correctional Institution in Fort Dix, New Jersey. On February 27, 2006, it was reported on The Howard Stern Show that he was "recently" moved to Federal Medical Center (FMC) Devens in Ayer, Massachusetts. Mroszak was released from prison on July 27,