Lawrence Krauss agreed to a debate with a Muslim spokesman at University College London, and discovered that the Muslims had organized segregated seating: men in one section, couples in another, and women in a third (apparently, in back, too). He walked out until they agreed to allow mixed seating. Richard Dawkins has an account, and there’s another on facebook from an attendee, with video.
It’s bizarre. I have no idea what they talked about; it’s all overshadowed by the archaic bigotry of an old patriarchal religion. Of course, do we even need to know what was said after the Muslims shot themselves in the foot so thoroughly?