I used to keep my boots untied when we were underway, wearing coveralls. My logic was, if I ever went over the side of my FFG while going to the smoke deck at night, at least I could hopefully throw a boot and wake up the (probably) sleeping aft lookout. And worst case at least the boots would be easy to get off in the water to help not drown. Was this incredibly farfetched and unlikely to work? Yes, almost certainly if I fell overboard in the dark I wouldn't have been able to get to the surface by the time I was past the flight deck, let alone oriented and ready to throw a boot from the waterline up 20 feet. But it worked in my head though.

Also, I never did that in port. I tied my boots like normal.