Hello pdtsomerset. I don't know much about 'hot-tubs' but I do like to soak in a hot bath every morning and I really enjoy the experience. I have had very few 'incidents' or accidents in the bath over the years so I carry on enjoying my routine. Fortunately, I also have a shower in the bath so that if perchance anything should happen I can switch from a relaxing soak to a stand-up shower in seconds. My philosophy includes not letting the odd chance element stop me doing the things that I like or want to do. As with everything else in life there is always the chance that occasionally some things will go wrong but that wouldn't stop me from doing them. Everyone is different and for some the prospect of things going wrong might be enough to put them off. I feel that these types of people must be missing out on some of lifes' greatest pleasures.
Best wishes Bill