They actually came from behind me... I think they just grabbed the top hose. I remember having to turn to see both of them and they were gesticulating wildly. Given the angle, I bet that a yaller octo clipped off on the waist would have been yanked in a second.don't you think they may have grabbed for the one in your mouth hadn't your necklaced reg been right there and so very easy to find/grab?
I hate danglies. My OW students are taught to clip/tuck any and everything that dangles. I do get a lot of certified students coming in to do my Trim, Buoyancy & Propulsion course and they have a variety of configurations. We go over their configurations in order to determine what's best for them... not me. I'm not the one going to be diving their gear!

Everyone is different. Everyone has preferences. Some of us have physical 'issues'. Adaptability and innovation are the hall marks of successful people and that includes divers, allowing them to overcome a myriad of obstacles. If you don't believe me, just ask a Marine as it's a part of their culture. Trying to push people to every thing in only one way stifles evolution. I guarantee that having an octo secured on the waist or close to it will not cause the diver or the idiot who just ran out of air to die.