Recommended
How Safe Is the SHOWER HEAD OF DOOM?!
Why people recommend it
An entertaining ElectroBOOM explanation of electric shower heads and why their live wiring is less dangerous than it appears, with one viewer asking for help following the circuit reasoning.
Watch for: Comedy style; not a guide to mains work
In their words
I'm watching Electroboom and don't understand why the voltage drops when he touches the spoon.
user5389726598465 on electronics.stackexchange.com, Apr 2020. CC BY-SA.