Another youtube clip but not come across one of these before. Follow the instructions and you experience a rather odd optical for a few moments.
I wouldn't try it after drinking though and its not one of those scare things where something jumps out at you screaming halfway through.
<!-- m --><a class="postlink" href="http://www.youtube.com/watch?v=Vn1GaaLhz4g" onclick="window.open(this.href);return false;">http://www.youtube.com/watch?v=Vn1GaaLhz4g</a><!-- m --> I haven't embedded it as you need to watch it in full screen.
I wouldn't try it after drinking though and its not one of those scare things where something jumps out at you screaming halfway through.
<!-- m --><a class="postlink" href="http://www.youtube.com/watch?v=Vn1GaaLhz4g" onclick="window.open(this.href);return false;">http://www.youtube.com/watch?v=Vn1GaaLhz4g</a><!-- m --> I haven't embedded it as you need to watch it in full screen.