All I can say is here are three fairly insane Tesla coil videos. The third one may not actually be a Tesla, but it’s insane enough for me to overlook that.
This guy set up his Tesla to ground to the dropped ceiling grid.
Here we see a crazy man. Note the flames coming from the fluorescent bulb in the last couple seconds of the video.
This… Well, this is just plain the coolest thing I’ve ever seen done with high voltage. I don’t know exactly how this was done, but I’m damned glad it was.