Cmon, that's ridiculous! There's no excuse for an unsafe hookup like that. If OSHA walked onto that site, that guy would get slapped with a violation. 2 violations, actually, if you count the other cord as well. Not to mention that the welder isn't grounded either. Besides, all he needs to carry around with him is some 6/2, a receptacle, and a QO, CH, and BR breakers to hook up safely. Electrical safety is everyone's business.
