Ok the board I got this from never indicated the source but I found the tidbit funny and had to post it here:
-- WWE originally planned for Triple H to ride a Clydesdale horse to the ring for his match against The Undertaker at WrestleMania XXVII. During a test run, the horse fell through the trap door on the WrestleMania stage, with Hunter riding it. The horse was spooked and went wild. Plans for the ring entrance were immediately scrapped.
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