Well, what if both players miss the question?
Bob: "You just lost $627,000. But hey, at least he doesn't get to take it home!"
...or if the player still has both helps?
Bob: "Well...you still have one help left. Would you like to ask Mark for his advice again, just to mix things up?"
I wonder...should the first situation occur, would neither player win, or would they go spelling bee style until there was a definite winner? After all, Bob does say "Either you win, or they win!"