Reminds me of the days when I got bored myself and wondered what parts would do under high voltage or amperage lol . BTW electrolitic capacitors sure make one huge white puff! .
Believe it or not there have been a few times when I tired up a home made circuit and some stuff like that video shown happened because I arched a connection by mistake or didn't see the right color bands on stuff lol.
Okay call me a freak but back in my youth I had a lot of fun with a 12 volt 30 amp power supply. Hook those alagator clips to anything you could dream of. If all was bad the most that would happen is the safty button would trip. I was one crazy kid lol. Electronics were fun in youth, just forced them to make yourself learn how they worked rather then read a book lol. Luckly I grew up and read some good books, but those type of videos remind me of the crazy fun days of making things pop lol.