disclaimer: was not today, was years ago when I was in high school
Did you know most consumer inkjet printers use either a piezoelectric crystal or a tiny heating element in each print head to produce small, consistent ink droplets?
I didn’t!
So I tried cleaning my mom’s printer heads with rubbing alcohol. Which unclogged them! And then promptly set the printer on fire after being ignited by the heat and/or sparks.
My family will never let me live this down.
It actually was while I had it disassembled for cleaning. I did at least know that much electronics safety haha