I had a helper once. There were very few times I welded something that he did not check to see if it was hot with his bare hands. He just couldn't help it no matter how many times he burned himself. He is also responsible for me almost dying from laughing so hard. He was holding a piece for me to Tig in a very odd position and somehow managed to forget basic electrical conductivity rules and why we also wear gloves around any welding. He managed to pick the piece up off the grounded table and become the ground path through his bare hands. When I hit the foot pedal, the resultant little girl high pitched scream and the part flying across the shop set me to laughing and I wasn't sure I was going to ever stop.
https://www.instagram.com/reel/Ck3Yr7Kvp3A/?igshid=YmMyMTA2M2Y=