Well, just coming off the stage and there's like 180,000 people out there and your adrenaline is going so high, and you're doing so much and it's hard to just put your head on the pillow and sleep because it just goes on and on, even after you're off the stage.
If the opponent offers keen play I don't object; but in such cases I get less satisfaction, even if I win, than from a game conducted according to all the rules of strategy with its ruthless logic.