I don't think I fully understand the rationale behind taking a bath.  Showers I understand.  But a tub full of water that gets increasingly dirtier as it washes more dirt off your body?  I would speculate that a person is no cleaner when exiting the bath than when they entered.  If anything, their dirt is more uniformly distributed.  Now instead of having dirty feet but clean legs, you have slightly less dirty feet and vastly dirtier legs. 

My favorite thought on bathing is from Dilbert: 
[Image: dilbert19951124.gif]
#psychology