Seriously, he's a bit oblivious to a bunch of stuff @_@
Maybe he thought he was hallucinating?  Or one would think he would 

tell

Akane, right?

Consider something important about Tendou Soun.

Soun is, by essence, a coward.

Considering that, take into account:

1. Ryouga could crush bone by squeezing it.
2. Akane can crush anything if she's pissed off enough.
3. Ryouga's curse would definitely piss Akane off, and she'd be as 
likely to kill the messenger as she would the perpetrator.
4. Ryouga is, as far as most of the Nerima denizens are concerned, 
fairly unstable when it comes to revenge matters. 

Considering the possibility of having every bone in his body reduced 
to powder by Ryouga and/or Akane if he talked about it, it's pretty 
understandable that Soun would clam up.

____

------------------------------------------------------------
"If it looks like a duck, and walks like a duck, and quacks like a 
duck...pour hot water on it."
Ryodachi Kouma
"The Eternal Lost Lurker"
squn29a@prodigy.com
http://pages.prodigy.com/EtLostLurker
*Please say a prayer for the tornado victims In Jarrell, Texas*