I started doing electrical experiments when I was ~6 years old.
I had an expensive battery habit.
Then my aunt gave me a Marx electric train for Christmas. The train transformer saved me a lot of money. I ran a Ford Model A spark coil off the transformer and shocked my friends and relatives.
When I was 40, the neigbor came over with his cocker spaniel. The dog pee'd on my electric fence. That dog had the strongest shock response I have seen.