There was a science class back in high school where we were messing around with a Van de Graff generator (one of those big ball-headed things) and we were "shooting" lightening bolts from our fingers or lighting up a fluorescent tube by holding just one end. The teacher let us ramp up the voltage to see how much we could take before we couldn't take it. Some of us had it up to about 300,000 volts but it was only about 0.1 amp, so no real "current". Back then, nobody thought of the consequences of possible injuries.
It was FUN !
I certainly hope it was a few orders of magnitude less than 0.1 amp... as much as shooting 30 kilowatt lightning bolts out of the fingers sounds.