"I'm not afraid of heights, I'm afraid of widths" -Steven Wright
I'm not afraid of heights as long as I know I'm secure. Standing on scaffolding 30 feet up scares the crap out of me, but if there's a handrail, I could care less. I can climb to the top of a 50' chairlift (ski lift) tower, and as long as I have my fall protection harness on and hooked to something secure (like the hoisting arm that's rated for 4000lbs).
I got a good shock of a different kind this morning, more of a real shock in that it came from a motor. I was working on the limit switch of a 110vac gearhead motor for an adjustable bed. Before you mention it, yes, I did unplug it before pulling it apart, what I forgot to do however was to discharge the starter capacitors. This thing had two big 500v capacitors (they looked like D batteries) and they were wired in parallel. I accidentally touched the lead to one while I had my other hand on the bed frame which was still grounded via a different motor. I didn't see a spark, and since it was only capacitors, it was a really quick jolt rather than an electrocuting connection. Even at less than a few hundred milliwatts, 1000 volts can still get your attention.
It's kinda like when you walk across a carpet in socks and touch a metal light switch plate (doorknobs aren't typically grounded and won't give the same power of a shock) except that rather than having to build up the charge, it's already stored in two capacitors rated for 500v each, which packs a punch.
If you want to know what this feels like, find an old CRT TV (not a flat screen, but the old curved glass type, preferably with an antenna still attached). Turn the TV on and rub your hand all over the screen, you'll feel the static. Then shut off the TV and rub it again and you'll feel a lot more static on your hand. Once you aren't feeling any more static from the screen, touch the antenna with your other hand, you won't get your finger within a quarter inch before you see a bright spark and feel the electricity in your finger muscles. What happened to me earlier today is basically that shock times 4.