What we saw on RAW with Kevin Nash was, as I thought at the time, not storyline or angle-related... he suffered a legitimate injury. In fact, one similar to the one HHH suffered last year.

The ending with Shawn Michaels seemed a patched together bit - because it was. Thanks to Kevin's accident, they had to come up with an ad-lib.

This may be a career ender for him. Regardless, I hope it all works out.