Grew up in Germany and if you look at the wall outlet it 'resembles' the nose of a pig, sort of...

Now I am in the US and the sockets only have slits not round, dark, mysterious little holes.

I can assure you though, that 220V has more umpf than 110V

I did that 220V experiment at least twice ... second time I saw openings in my table lamp next to the bed and decided to 'poke'
in one with a screwdriver that came with my steam engine....

Me and electricity is like water to an oil fire