One time at ST Marine, there was a young delivery driver delivering life raft for my company's vessel..
LOL.. He was only wearing a cap, his company Polo T shirt and wore an Adidas sneakers instead of safety boots.. He went up the vessel to give me some DO to sign after crane operator brought up the life rafts from his lorry up to our vessel.. A Keling Safety Officer was also onboard the vessel and saw the delivery man not in proper attire but took no action at all..
Best thing was, the Keling Safety Officer was also having a quick puff of his Camel cig on the starboard side of the vessel..