Is there any premise, theory or scientific guess, why H2O could trigger the process of human urination, biochemically, &/or neurologically? ...

Is there any premise, theory or scientific guess, why H2O
could trigger the process of human urination, biochemically, &/or
neurologically?

From my extrapolated research,
especially hundreds of my students (age 8 to 16), and from worldwide on-line surveys, it
appears there are literally millions of adults & kids, ages "8 to 88", around
the world, all races, all ages, all economic background, and I believe crossing
centuries, who have asked this famous question: Why does running water [feeling it,
seeing, &/or hearing it run] make me have to "pee", urinate?" What are the
answers you received from the urologists, biochemists, neurologists,  and even
psychologists? What are their combined "premise-s", theories, and even scientific
"guesses"?

Are their any scientific journals,
dissertations, magazines, papers, or books out there in the worldwide scientific
community, that have answered this age-old
question?

What do we tell are kids?...Like "Don't
bother me with your useless ridiculous questions! Go ask your
dad!"

Did you know, the number "#1"  most often
question asked of NASA and the astronauts?: "How do you go the bathroom when your up in
space?" Even one of the new episodes of "Larry, the Cable Guy" had him get fitted into
of NASA's newer space toilets!

So my students --
and students from around the globe -- are asking a serious question, and they are
expecting a serious answer, besides the usual answer: "At this time we have no answers."
So, extrapbulate, theorize, even a scientific "surmise" or a scientific "guess" will do
at this time.

Thanks, I and my students love your
site.