As someone who has spent a fair bit of time working on swingstages, towers and other structures, there's a few things that immediately caught my attention. Yes, I'm going to be that guy.

- As this appears to be a photoshoot for SmugMug, of SmugMug employees, does Smugmug carry the proper class of insurance on their employees to allow this sort of work? In most cases, unless additional coverage was purchased from the insurer, your general "office worker" insurance will not cover this type of work.

- Was the building owner aware of the photoshoot, and did they have the insurance to cover this sort of work?

- Does Von Wong's liability insurance cover this sort of work (especially since he's not tied off when jumping around on the ledges)?

- I don't see a shock absorber attached to the harness, whcih is necessary to limit the forces on the person to 900lbs (body belt) or 1800lbs (harness) in the even of a fall. I also note that the harness looks like it's a climbing harness NOT a proepr fall-arrest harness (the exception I saw was Hell-girl). Generally you must wear a full body harness rated for fall-arrest and be attached using the back D-ring when doing this type of work.

- The tie-off point, while not visible in the video/photos, (generally) must be a certified tie-off anchor or rated to 5000lbs arresting strength. Using a travel limiting device _may_ have been acceptable, but there doesn't appear to be one.

- The webbing making a sharp angle across the roof flashing is also not ideal, as you should be anchored from above in almost all cases.

- Was there a rescue plan in place? Had someone fallen, what would have happened?

If all of these things were taken into consideration and properly addressed, then thank you for doing your due diligence, otherwise I feel like this has OSHA violation written all over it.

I imagine the city of San Francisco also has regulations when suspending equipment beyond a buildings footprint over an active street.

People die regularly from improper fall arrest systems. You were not just doing a fun photo-shoot, YOU were responsible for these people's lives, as well as the lives of anyone walking below.

I will acknowledge that my knowledge relates to the Canadian labour code, but the US regulations appear to be similar.

https://www.osha.gov/Region7/fallprotection/fall_protection_... https://www.osha.gov/SLTC/etools/construction/falls/fallarre...