These scaffolders were at work on the 16th floor (where there is an external balcony) of the building where I work. A colleague and I advised our company Safety Rep as we believed they were not complying with safety regulations and were, in our opinion, working in an extremely unsafe manner (for themselves and potentially people walking below). To cut a long story short, the Building Engineer agreed and it was escalated externally.
As a thankyou and to acknowledge our reporting of a significant safety incident, my colleague and I each received a gift voucher at a recent company meeting to the value of $200. This enabled me to purchase a BG-E2 Battery Grip for my 20D.