I had to leave with DD7 during that one too. The air blowing on us at the beginning freaked her out. DS9 and DS4 were "brave" and watched the whole thing with DH. I should have figured it would NOT be for DD7 when they repeatedly came over the loud speaker while we were in the queue room stating it "may frighten young children". Live and learn.
Like the previous post, DD7 loves the Haunted Mansion too. Go figure.