First of all Jordan, I'm glad you're okay. Thanks for documenting all the important details. Pictures of the gurney rolling you away drives the point home.
I've been shocked a few times myself. Once because of my wife. I was trying to fix my TV, which made this weird clicking noise. I pulled off the housing on the back and looked at it. I plugged it in and using my eyes and ears zoned in on the particular spot where the sound was emanating. There was this tiny blue flame shooting power about 1/2". I told my wife that I found the problem, and she she asked "Where?". I pointed to the general area, and she didn't see it. Again "where?" and I tried to explain the spot. Again she asked and out of exasperation, I pointed right to the exact spot getting my finger a tad too close. The power that hit me sent me flying across the room into the sofa.
I divorced that woman.
Oh, and fixed the problem with a nice bead of silicone on that area. All these years later, I'm still using that same TV.
Another time I was working on the house wiring. I had to reroute it as I was installing a new door. The power was cut to the circuit before I started. As I was twisting the wires together, I felt a sudden vibration and freaked out. My assistant nearby looked up at me in surprise when I reacted like I just got shocked. Turns out my pager had just vibrated at that precise moment with me holding the two bare wires, and I misinterpreted the signals.

:lol:
When it comes to working with metal halides, the rule is not to touch the bulb, and never when the power is on. When I have to take the bulbs out for cleaning, I wait until they've been off for a while so the glass is no longer hot. Once cleaned with vinegar and water, I wrap the bulb in a clean dry paper towel or slip a sock over it. Now I can screw it in safely.
MH don't always start up as soon as you turn on the power. Some take a while to warm up, while others at least show a glimmer of power in the core as it builds up to fire the bulb.
We should always be careful around electricity, and have a healthy respect for it.