Not sure that hanging from an anchor chain of a drillship anywhere (especially not in the North Sea) is a very bright idea. This could be an audition for Whale Wars crew hopefuls.
I once chewed a bosun out for getting grease on the anchor windlass’ brake pads… but maybe he was smarter than I thought
I was thinking myself that they might want to let out a bit more scope. Just in case of bad weather of course.