Die! Die! Die!

Caden is fascinated with airplanes. He gets all excited when he hears one coming and looks around until he finds it. I used to point out to him that he could hear an airplane in the sky. I guess the only thing he picked up from that was 'sky,' and since he can't yet make the 's' sound at the begnning of the word everytime an airplane comes by Caden runs around pointing upward and screaming "die! die! die!"