At 12:19 PM 6/24/98 +0800, Scriviner wrote:

Ranma 1/2 - Since Takahashi-sama has ended Ranma 1/2 we'll never know, but
I wonder if ingesting Jusenkyo water has any effect.  Perhaps when taken
internally, it produces a mental change with exposure to cold water.  What
if Happosai takes on the personality of the man who drowned when he is
splashed with cold water?

Haposai did chug the spring of drowned man water in the last issue of the
manga with no obvious side effects.

But he wasn't splashed with cold water subsequently.  

                                           dml