Final answer:
Once, I noticed a crew-member not wearing a safety harness at height, which was unsafe. I stopped the work, spoke with the member and supervisor to address the safety issue, ensuring adherence to safety protocols.
Step-by-step explanation:
Regarding a time I witnessed a crew-member doing something unsafe, I recall a scenario on a construction site where a crew-member was not using the mandatory safety harness while working at a significant height. Recognizing the risk of a potential fall, I acted promptly. Drawing from the principle that you can refuse a task if you believe it's unsafe, I suspended the ongoing work and addressed the individual.
I reminded the crew member of the importance of safety equipment and the risks associated with neglecting them. Simultaneously, I informed the supervisor of the unsafe behaviour to ensure that further training and safety checks were implemented. The swift confrontation of the unsafe act not only ensured the wellbeing of the individual but also reinforced a culture of safety amongst the crew.