[roflchoppa]

Oh dude the old Frys electronics in Fremont California had some on display they would randomly discharge when you were browsing around the store it was awesome.

https://www.youtube.com/watch?v=AUOuu34TqF8

[Teknoman117]

I remember that thing, but it was in a big faraday cage to prevent anyone from getting zapped.

There was also the building height Jacob's ladder over by the PC system builders section.