Most of the stuff is light amperage...if it was like our 110, he would vibrate a bit and his own reflexes would probably drop the connection. 110/220 isn’t bad with low amperage. I have had 110 at 15 amps for a couple of seconds and it ain’t that much fun.
Suing for his lack of common sense? Thats the problem with it all he talked to a lawyer and wants some “easy” money.
The problem is the 60 Hz frequency. Human muscle and nerves respond and depolarize very quickly in this frequency range, even at very low voltage. The old saying is true in general that voltage bites, but current is what kills. But even then, at either DC or very high frequencies, a low voltage doesn't affect tissue much. The 50 to 120 or so Hz range is a much different story. When the tissue being affected is cardiac tissue - you've got problems. Setting up a circuit from one tit to the other puts the heart smack dab in the middle of it. The story said his heart stopped. The circuit put the heart tissue in tetanus mode. Stopped heart = no blood to the brain. After 5 min without O2 brain tissue dies. Report claims the boy suffered brain damage.
Sad story. I hope the teacher had nothing to do with this stunt.