[ Well, she knows where Ranma's lack of brain cells comes from... but also, being a panda doesn't sound TOO bad. You're cute, sure, but you're also still a BEAR, which are pretty powerful. She has at least enough sense not to say these things. ]

... And given you've gone this far without saying what you turn into, I'm guessing you want to keep that secret.

... All right then! Consider it unknown. I won't ask about it, won't poke and prod, and won't ever bring it up again. You have my word.

[ of course she WANTS to know, but she's not going to rip apart Ranma's privacy for her own curiosity. ]