I tend to learn a lot more from my mistakes than from my successes.
Unfortunately, same here.
My first real electrical project was a "remote control" car made from two 120 VAC motors similar to the one in the picture below. At the time this 1956 model (me) was about 8 years old. The steel motor output shafts rested on wheels made from (about) 6 inch discs cut from 1/4" plywood. I scrounged the motors and two switches and two pin non-polarized AC plug, but purchased about 50 feet of brown 18 gauge zip cord at the local hardware store with money saved from several weeks of my allowance.
If both motors were switched on, the "car" would go straight, dragging the 25 foot of taped together zip cord around at about 10 miles an hour. Switching either motor off for a moment caused the car to go turn, if one motor was left off for more than an instant the car would spin in place, quickly wrapping up the cord like spaghetti. The steel to plywood disc connection was slippery enough that toggling the on/off switches made it possible to turn any direction, or even "kind of" slow down.
I did not make direct contact with electricity in that experiment, but did manage to wire a dead short on the first attempt, so upon first plugging the car in there was a bright spark and "pfft" noise followed by no lights. Working in the basement there was still some light from the window wells, but it was very dark in the windowless "work room" where the fuse box was located. I managed to replace the 15 amp fuse which evidently provided power for all the outlets and lighting in the basement without anyone else upstairs in the house knowing I had screwed up.
After correcting the wiring mistake, and some practice diving the car around the basement, I demonstrated it to my Mom, who showed some positive enthusiasm for my creation. She probably would not have been so enthusiastic if she had witnessed the sparks flying an hour before.
Since that time, I have inadvertently (and occasionally intentionally) made physical contact with AC numerous times, but fortunately those mistakes have taught me to know and respect the power Tesla made abundantly available to us all.
Art
