> Now, electricity is not the boogeyman: you can open a power supply safely, you just have to be aware of the dangers inside. First, never open a running power supply: if you accidentally touch something at high voltage, you could die.

Fortunately it wasn’t fatal, but I stupidly did that as a kid. It was my first PC build (an Athlon Thunderbird system) and it was crashing. I fixed the problem by adjusting the PSU voltage rails with a screwdriver while the system was running so I could see the changes in the BIOS.

Not my smartest decision.