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Quagmire's dad, Lt. Col. Dan Quagmire, comes to visit and Peter and the boys immediately suspect Glen's player of a father of being gay. Soon, the man announces he wants to get a sex change and returns as Ida. Brian ends up meeting up with Ida at the Marriott bar and sleeping with her before learning about the sex change. When Glen finds out, he beats the crap out of Brian, who already spent the day vomiting after learning.