>have an old TV for my Nintendo as a kid
>TV dies one day
>sits there broken for a year
>one day curiosity gets the best of me
>open it up with a butter knife because no screwdriver
>see something like pic related
>it's been unplugged for a year, what can go wrong?
>start taking off every screw I can find
>knife manages to touch both contacts of a large capacitor
>ZAP
>drop knife and recoil in shock
>felt like someone had punched me as hard as possible in my fingertip, knife had a black burn mark on it
>mum hears commotion, comes in and yells at my dumb ass and I get in trouble

My hand was numb for a few minutes and red but that was it, I learned what a capacitor was that day.