This came to me after watching Superman: Doomsday, a DC animated Movie based off the Death of Superman Arc in the comics. During one scene, Lex Luthor is beating on a superman clone in a red solar lamp lit rumpus room with kryptonite knuckled gauntlets. After the superman clone is sufficiently weakened, Lex says "Who's your Daddy?". For some reason, I came up with this pic of Ryuu beating on Leonardo. I would be surprised though if Ryuu had managed to capture Leo, keep him locked up somewhere, and beat on him to work out some issues and relieve some stress like his homicidal tendancies and frustration at Yoko's obliviousness of his feelings. Enjoy.

TMNT©Mirage and Viacom
Oroku Ryuu© warriorking4ever http://warriorking4ever.deviantart.com/
Pic©Me