Is the Haunted Mansion at Disney World Really Haunted?

There is a rumor that a mother scattered her sons ashes in the Haunted Mansion at Disney World and cast members have seen and heard a small boy in the mansion. Also on Gradnight when the ride was momentarily stopped a senior got out of his seat and approached the "Madame's Crystal Ball" and feel through a maintenance pit instantly breaking his neck. Do you think these rumors are true?