At the 1893 World Exposition in Chicago, Tesla demonstrated the safety AC electricity was by passing high frequency AC power through his body to power light bulbs. He then was able to shoot large lightning bolts from his Tesla coils to the crowd without harm.
That's simply the old trick whereby the front person in a chain of two or more people touches an electric fence and the person on the end feels the shock. That's not shooting lightning from his fingertips.
"I absorb energy like a sponge everywhere I go. It allows me to see the world and my purpose in it." Zak Bagans, Ghost Adventures (INFJ)