Yet another complexity of imaginary grandchildren.

P.:  Hank wants to tell you "Happy Father's Day."

D.:  Thank you, Hank.

P.:  He hasn't said it yet.

Coping mechanism.

P.:  Pretending things helps you express your feelings.

D.:  Who taught you that, buddy?

P.:  I just came up with it in my idea.  It came out in my words.