LOL! Now that's funny, coming from a guy who smokes cigarettes, pipes & eats bacon! I probably wouldn't get in a public hot tub either; haven't been in a public swimming pool for yrs. But I choose my "friends" wisely. No "cooties" yet!I think doing anything in one of those bacterial breeding tubs is unsafe.
LOL! Those "exits only" have way too much back pressure to ever become entrances for bacteria! And it's that "back pressure" leaking off that would bother me in a public hot tub. But I get your point about overcoming reluctances & risk vs reward. I know of a story which would illustrate that point perfectly, but it can not be told here.But, I have bits and pieces which are for exit only not entrance.