The scariest moment of my life was a couple of years ago at a scout camp in winter. A few people in our troop went for a hike up to this frozen river which led up to a frozen waterfall. I decided that I wanted to get closer to this frozen waterfall by climbing up this slippery ice river. What I didn't realize was that while getting up was tough and dangerous, getting down would be next-to-impossible. So I ignored the warnings of the adults telling me not to, and I got to the point where the slope went from about 40 degrees to vertical, and I stopped because I had reached my goal. I was unprepared, on a fairly steep slope, wearing sneakers and a jacket. I looked down, and to my horror, everyone was like little dots to me. I then realized that I was up on the top of a steep, slippery, featureless slope with a possibly-fatal runout, spread-eagled at the top with no apparent way to get down. I broke down into crying and hyperventilating, because I was sure this was the end of my life. I wish I could describe it better. It was terrifying, and words just cannot describe it. If you have ever been hiking/climbing in the winter, you might know what I am talking about.
Another time in my life that was scary (but really fun, for some strange reason, and not NEAR as scary as the ice waterfall) was walking along the roads in Lynnwood (WA) at midnight. It's not always a nice place. It was me and three friends all walking down the roads there, and we encountered a few creepy people along the way. First, there was this guy in a white car speeding down the road. He held down his horn for like 30 seconds while passing us! We thought it was pretty funny, and then he came back, doing the same thing! We were in hysterics by this time, utterly convinced it was somebody we knew. Until...he came back. Twice more. And we were freaked out, so we ran. Immediately after this, some guy in a bright red car swerved towards us and tried to grab one of us. He missed by about an inch, and then sped up away from us, so we just kept on walking (we were going in a loop, and either way was the same distance.) Our group of 4 split up into 2 groups of 2. So then, as we were heading back around, somebody yelled the f-word at us and threw a soda cup full of ice at us. I know it doesn't sound like much, but we were pretty freaked out about this. Right after this, some guy screamed the n-word at us, and in our stupidity, I yelled "WE'RE WHITE!" (Not like I'm racist or anything, I was just afraid of some anti-racial group coming for us, so I yelled the first thing that came to my mind.) My friend then swore back, and we heard screaming tires and burning rubber as they pulled a u-turn in the middle of the road, then ran like hell. We hid in the bushes as they passed us, and walked home with our hearts jumping out of our chests. We met up with our other friends about 10 minutes later in the house, who had encountered similar issues. We were all scared out of our minds, but it sure was a break from the pretty boring life I lead most of the time.
-Mark