Sam, had he been in better spirits or maybe simply a more bold person, would have said the immediate thought that came to mind, that he quite liked the sound of finding balls -- but anyway. He didn't ask for more details on the story as he might have done once either; he just wanted to get away from this painfully chipper man and his game, which he was sure was rigged.
Having read many stories about tricksters and con artists, Sam knew it was unlikely the 'lady' was going to be in any of the cups. Still, he obediently watched and tried to keep track of the ball, but after a certain point it became impossible to tell where it was. "You d-do that very quickly."
After a pause, he looked between all three cups. "...What if the ball i...isn't in any of them?"