Absolutely the most ignorant and disrespectful bunch I have ever had the displeasure of dealing with. No zero rating like they deserve. I told the supervisor that the guy needed a fall protection system... he said "what ***** business is it of yours?" "He's on the roof so hes fine" are you kidding me?.(See photos). Guess they will be seeing my friends at the MOL very soon.
Edit: based on your response you are either ignorant or grossly misinformed regarding fall prevention regulations: workers are required to have fall protection in place when working above 9.6ft or 3m. What was observed was neither "standard construction methods" or legal.