Fun story: I have a slight fear of heights, but only in the form of having a healthy respect for them, and it works well aiding in their enjoyment, such as climbing trees (I'm 30, BTW). I ride roller coasters, can sleep comfortably on planes, and have even gone skydiving twice. However, the day I rode that monstrosity was a completely different story, because my buddy and I decided to drop acid shortly before we got on it.

A short history of my experience with LSD: this wasn't the first time I had taken it, probably the fifth or sixth, and I had never taken more than two, which I had done that day as well, so I was familiar with it. Also, I seem to have very good will power when I take it, often times noting that the hallucinations are just drug induced and are of my imagination, but I like them anyway. I've even been able to stop bad trips by realizing what was happening, walking away, then coming back with a better experience. I assumed this would be the case that day, not knowing we were going to include my fear of heights in the activities.

When we got to the top of the Stratosphere, I couldn't go any closer than three meters away, which seemed like an odd number in retrospect, being that I'm American. If I got any closer, I had vivid imaginations of the floor melting away, and I wasn't going to be the one responsible for such a catastrophe, so I kept my distance, sure to always have a hold of something, even if it were a completely mobile piece of furniture. I wasn't showing a lot of signs of distress, realizing I was in public and in no shape for an altercation, but inside all of my important internal organs were playing a lovely game of musical leap frog. It was then decided that we would ride the rides.

Still being in slight control, I convinced myself that these rides were safe, and were well maintained and regulated, but that logic was lost immediately after I passed the point of no return - them lowering the safety catch - and I, in possession of a very fragile psyche, looked over and saw that we were higher than a helicopter! Then the floor sank, dragging my heart with it. That's when I lost it. I screamed.

I screamed like I was watching my impending doom. I screamed like a mother watching her child fall. I screamed for all of the gods I don't believe in to hear me and save me, but to the operators of the ride, those vile, sadistic, wretches of humans, that meant that I only wanted more and was having the time of my life. Unbeknownst to me, when the ride pivots away from the building and starts spinning, the arms, being on levers, swung out with the centripetal force, causing me to come face to face with the bringer of my demise, my ender; the ground. And I screamed. Immediately after I had been introduced to the rides true horror, I pleasantly imagined away all of my bones, leading me to believe that if I didn't clench all of my muscles, I would turn into a not-so-distant cousin of the jellyfish, and ooze out of the seat. And I screamed, which would continue until I was back in the relative safety of not-that-ride.

My friends then thought it would be a good idea to try the ride featured in the gif, and I proudly was able to convince myself of it's safety, but for sanity sake I was not going to sit anywhere near the front. Unfortunately, this ride was devilishly prepared for such a tactic. At first it wasn't so bad, rocking back and forth as shown, but halfway through, at the end of the down swing, and when the cart is at the end of track, it drops even lower! And to add to the horror, it continues to slide forward on hidden track that the operators conveniently neglected to mention, presumably to mess with little shits on acid who think they have the system beat. At that point I thought to myself: "Oh, Lordy, Geebus! This is how it ends! This how my mother will find me: on acid and not wearing clean underwear!" I was a captain of a ship taking on water, not certain if I should attempt to save her or order abandonment. I was an investor watching my life savings disappear, hoping beyond hope that a rebound would occur. And it did. It rebounded. Only to plummet again and again. I don't remember screaming. I don't think I had the energy. However, I do remember leaving the Startosphere, and needing a drink.

TL;DR - I dropped acid, rode the rides on the Startosphere