hardhat:
But then again I see you're an instructor so I would imagine you spend a lot of time in your own filth with your face in crotches, sniffing around and such.
There does of course come a point when knee-jerk reactions say more about the person who's knee is jerking that about the subject at hand...
...that said, it's interesting to see some of the psychological responses to this question; rather like couples who would happily interact with each other being horrified at the very idea of using each other's toothbrushes.
I think a lot of it is due to the fact that wetting yourself goes against years of programming in social acceptability, and that there's a certain stigma of bestiality attached to it.
I've also met a lot of people who wrinkle their nose at the idea on the grounds of believing it pollutes the environment, a near-groundless objection given the chemical composition of urine (and even more groundless compared to the sheer amount of pollution poured in by various industries worldwide).
Of course, there's the physical question as well as the psychological. Water at depth puts pressure on - besides other things - your kidneys and bladder, which can cause an increased need to urinate, and, personally, I've found that the very fact I'm so relaxed and comfortable in the water is also a factor.
Of course urine, like saltwater crystals, can build up in the suit over time, but then, if it gets to the point where it's really that noticeable then you've probably not been freshwater washing the suit very thoroughly in the first place (which, to be fair, is often a problem with dive schools and rented equipment).
