"When we have a queen who is a lesbian and she marries another lady and then decides she would like to have a child and someone donates sperm and she gives birth to a child, is that child heir to the throne? ... It's like one of my colleagues said: we've got to make these same sex marriages available to all. It would lift my worries about inheritance tax because maybe I'd be allowed to marry my son. Why not? Why shouldn't a mother marry her daughter? Why shouldn't two elderly sisters living together marry each other?"
Did someone say "mad, swivel-eyed loon"? Right on cue, up pops Norman Tebbit.
(Thanks to Matt for the link.)