I am not sure this ever happened, but on MDP, if the celebrity is giving the clues and they make it past the fourth level, which, if any, of these happens:
(a) The contestant has to decide whether to continue or stop without anybody seeing the words;
(b) The celebrity sees the six words, then "suggests" to the contestant whether to continue or stop, but the contestant makes the choice;
© 2010 (how do you turn off special character substitution - turning off "Enable emoticons" doesn't work)
(d) The celebrity sees the six words and makes the choice for the contestant (somehow, I don't see that happening)?
-- Don