My experience happened when I was 19. My class went on a field trip to this place were you walk across ropes about 30 feet in the air. Of course, you have a harness if you fall and a helmet. It doesn't look like much when you're on the ground, but once you're up there, it's terrifying. The wind blows, and the poles the ropes are stretched across sway back and forth. They told us they really weren't swaying as much as they seemed to be because we were so high up and already scared, but I started crying right away. I somehow made it all the way across even though I was sobbing and begging someone to get me down. If you're moving, they'll let you go. They'll only get you if you wrap yourself around the pole and refuse to move(which one girl did!). At the end, they tie you to a zip line and you free fall down almost to the ground. Then someone unties you and you jump down. Which isn't too horrifying. NOT.
I was finished crying a few minutes later, but some people kept crying for 20 minutes or more. I know it doesn't sound bad, but if you experience it, you understand.
So yes. Our school took us to a place where a lot of the students ended up in tears for an hour afterwards.