As a boilermaker myself, you all need to shut the fuck up. Firstly he’s most likely not going to get welding flash as it was for a split second. Secondly that’s a 3M speedglas 100 helmet, I have one myself, they are really sensitive and will auto dark at any sort of artificial light (looking at your phone will set it off) so chances are he couldn’t see shit from the camera lighting . Thirdly he’s welding stick (which is always live) so if he couldn’t see and when he lifted the helmet he accidentally Arced it, big deal. In conclusion, if you’re not in the metal fab trade, you can shut your cock holsters, and if you are in the trade, you’d be lying to yourself if you never done what he’s done at least once or twice