ok, i'll take a dump in your bath
you have fun with it, it won't attach to your body after all!?
you up for giving this a shot? gimme a call
So you prefer a shower because you can take a dump and it won't make you dirty. Shitting while standing. The water is flowing. Aah, clever.
So, you are against people imagining themselves with underage women, but you are all for imagining taking a dump in a stranger's bath. <_< Way to take something and make it filthy.
The real explanation is this: in a bath, the volume of water surrounding you can contain more filth than the surface area of your skin. So yes, the filth will dilute into the water, leaving your body. Go ahead and rub your body; the darker the water gets, the cleaner you become; less filth per square centimeter in your body means I win.
Seriously, you are talking as if everybody is covered in horse manure before taking a bath. It's not like that. Most of our filth is just dust with sweat, which easily dilutes in water.