Your logic does not resemble earth- logic

Pia was showing off something new she could do.  She leapt about 3 feet from a standing position:

Pia: Daddy, don't tell Domu I can do that.

Daddy: Why not?

Pia: Because I don't want him to know that I can do that.

Daddy: Why not?

Pia: Because he doesn't know that I can do that.

Daddy: Why not?

Pia: Because we didn't tell him that I can do that.