Poll of the Week: The most shocking Trek moment?

Many scenes throughout the history of the Star Trek movies and television show have touched, shocked or saddened viewers. In this series we ask which of these moments got to you the most? We will give you some of the scenes we found to be the most heart touching, tear-jerking, and most surprise jaw dropping and ask you to pick which one got to you the most.
There have been so many but few that have truly caught us as off guard as some of these have. This week’s ask: What moment from all of Star Trek did you find the most shocking?
Did your jaw drop? Did you stare at the screen for a few moments blankly while the images and sounds you just witnessed sank in? Tell us in the forum comments about what moment shocked you the most from Star Trek along what your reactions were.