you know, I'm not sure of anything as deep as he was describing. here's a video from reddit 3 years ago of a fish investigating some construction workers

https://file.garden/aachfeYx0Ribg655/hammerhead.mp4

nvm it's just a video of a feesh. sorry for misleading you. here's a video of actual welders I stole from tiktok

https://file.garden/aachfeYx0Ribg655/tiktokio.com1775868375_z3zAMj2g7a2EtVufJdbS.mp4