Sweaty hands...
Afraid of heights? I wasn't always. In my late 20's I installed a 40 foot high ham radio tower attached to my parent's house. My friends helped me tilt it up and bolt it to a wall bracket and concrete slab. That was the heavy part I couldn't do alone.I was able to do the rest without help. Climbing the tower and using rope, I raised the motor that rotates the antenna along with a 10 foot long pole that supports the antenna.
The antenna was an 8-element beam above that making it nearly 60 feet to the tip of the antenna above ground.
It was a landmark when people needed to find me "Just look for the antenna, you can see it from a few blocks away!"
Years later, I made a stipulation the buyer had to take down the antenna. He choked and I had to do it myself.
One of these.
A guy I worked with was on his roof doing repairs and fell breaking his ankle in a few places. He had a permanent limp as bone didn't heal correctly. My level of caution rose after that.
The wood shop I worked at upgraded their factory lighting and rented a scaffold to reach the high ceiling. I declined to assist. Thanks, but no thanks.
On a cruise ship once, I was on the observation deck that had an extended reach with clear plexiglass floor and walls. The view was totally unobstructed. My hands began to sweat and my skin crawled. Beautiful view... 10 seconds was all I could tolerate.
On the highway headed to work I saw a boom crane holding a bucket by a steel cable. There were a few workers inside. It appeared they were working on a church steeple crucifix easily at an altitude of 150 feet. I passed again the next day and they cladding around the crucifix was removed to reveal the inside was a few arrays of antennas used for cellular service. I've seen this on 'thick' flag poles and would guess the cellphone company paid the church for the use of the steeple. Watching those guys bouncing around made my hands sweat at the thought of the danger in their occupation.
I think back to all the times I've watched circus performers and wasn't affected. The guy with a beam walking a tight rope... the same. Maybe I'll call up a YouTube video to see if it has an effect on me. Soon, but not now...