Bill/River
Did he really? That's one I have never heard before. We moved in the same unsavory circles once upon a time, it's how we met. I've heard many stories of his varied exploits--he's had an interesting life, did you know?--but not that one. He's been... reassembled (for lack of a better word) a number of times. Maybe one of his earlier forms was blue? I would have loved to see that.