I've read this article somewhere that said in life-or-death situations your brain uses all it's processing power to save you so you might start seeing things slowed down, in black and white (to reduce the amount of work brain needs to do) etc..... not sure how to take it though, sounds hard to believe would be freakin awesome if something would enable you to do that at will though.
This happens to me on occasion, though it only seems to happen so much anymore when I'm reading. It used to happen as a kid a lot though. Always just thought it was panic attacks.
This happens to me all the time. Mostly during my training and sparing sessions at my towns Karate center. I have had this happen almost every time I was about to suffer some ill fated fatal blow (such as the time I almost got ran over by a Semi truck). This is especially fun when I spar with my best friend Fae when we both experience a fight together and last time we fought it felt like it was 30 minutes long (to either of us and what is odd is that our slow down times are exactly the same) when in fact it was only 12 and a half minutes. So we were seeking time move slower than negative 1.6 speeds. Well that what one of my experiences.
That or some other stuff. Also, Wanted. Lucky bastard has it normally, and in things like when his boss is nagging him.