On Mon, 24 Nov 1997 bogue@oak.negia.net wrote:

  Okay I have heard this argument several times before. 'Well
the other fiancees don't beat him up.' All I have to say to that is you have
not been reading the manga carefully enough. In volume twenty-five
all of the fiancees EXCEPT Akane decided to beat Ranma up for
showing interest in Mrs.Hinako. Ukyo DOES hit Ranma when he's
acting like a jackass, but admitidly not as much as Akane hits Ranma.

Akane hits Ranma there too.  You just don't see the blow on camera.

Pay attention to when objects are in Akane's hands and when they're on top of
Ranma's head. :-)