#8 Kane unmasks
As alluded to twice before in this list, Kane's career took on a bit of mixed fortune throughout 2003. His rivalry with several members of the McMahon family was entertaining and shocking in its own right, but the true shock factor moment from 03 came when Kane was forced to unmask for the first time since his debut in 97.
Following a short feud with Evolution's Triple H, Kane found himself in a match against the Game at Madison Square Garden with the mask on the line. This was, of course, the era of Hunter and Kane inevitably ended up losing the match.
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With Evolution in the ring and Eric Bishoff barking directions from the stage, Kane was stood battling with what proved to be a highly difficult decision. RVD eventually came to the ring to fight off an attack by Evolution but Kane knew he still had to fulfill his duties and reveal his face to the audience.
After ripping off the mask and unearthing his burnt and scarred features, he turned on his tag team partner and delivered a chokeslam with extra venom. Rather than becoming a sympathetic babyface, as would have been preferable, Kane instead went on a tirade, attacking members of the roster out of rage.
For many, this is seen as the downfall of the Kane character. He would eventually get his mask back upon his return in early 2013, but things were just never the same.