Takaba had a tattoo on his wrist. I think it was a "property of Fei Long's triad" mark (or so I decided in my head), and I believe they have it removed prior to arriving at the honeymoon resort. It looks like Takaba is wearing a plastic bag over his hand in the swimming pool (which amuses me, because I think he has some kind of gunshot wound on his torso...but, whatever).

Or I'm making this up? My head!Finder is probably a thousand times better than the real thing.