He was at Animazement last year. When I got my frame of cel animation from Cowboy Bebop: The Movie signed by him, he saw the frame, looked at me, and in very rough English said "This rare!" His interpreter only repeated what he said at that point. ("He said 'This is rare.'")
He's also one of the few men I know who can disguise his face simply by not wearing his sunglasses. In every photo, video, or public appearance of him I've seen, I've always seen him wearing sunglasses. Later that same afternoon I shared an elevator with him in the hotel, but didn't even realize it was him until after I had exited simply because I couldn't recognize him in his normal spectacles. (If I had know, I would have said "See you in space, cowboy," or something else completely nerdy and fan-boy-ish, but still attempting to be cool and shit, as I left the elevator.)