Top ten less likely things Ryouga would ever say:
10) I forgive you Ranma!
9) No... I abor volience. I'm a pacifist!
8) Now... Akane... You're all mine! Come on... say it! SAy you love me!
7) Hey Akane... wanna touch my *bokken*
6) Akane, guess what? P-Chan was here the whole time! Lookie, splash me with
cold water!
5) Jinkees... I found a clue!
4) The nakeder... the better!
3) Hmmm... directions... sure, I know my way around!
2) Happy, can you take Akane's panties, and give them to me?
and the least likely thing Ryouga would ever say...
1) Akane! I love you!

 I know this sucks... but I had to get it out! 

Another one? Here you go!

Least likely things Kasumi would say. 
Sorry, I can only think of one thing.
1) *beep* *beep* *beep*!