I am absolutely terrified of having my back turned to heights. I can stand on an observation deck and lean out, Ferris Bueller style, but I have to walk backwards away from the window. One of my worst nightmare is being tied to a chair that is leaning back, but cemented in on the edge of a skyscraper like so
This was especially terrifying in the dream I had last night about being in a shitty canopy hammock over the grand canyon and feeling like the side by my head would release first, leaving me to try and save myself by catching something with my feet.
Holy rough ridin' crap.