I've heard the same thing myself. I just shrugged it off, though, since to me it was really more of a "spur of the moment" kind of thing. Either way, I think Duo's only teasing Heero, so I don't take either quote seriously.

Thanks for sharing, though. That is interesting, but I would never use that in any kind of arguement, if I were you. Not unless it's truly been proven, that is.