Elias looked back at Cas.
"Woof woof!"
Cas disappears around a corner, morphing back into his human form
"More...pease.."
Cas puts a finger to his lips and runs away
"..."
Grandma: "Are you ready to go home now sweetheart...?"
"...home...yes.."
(Timeskippy)
Elias came back to the park the next day, this time he had a big stuffed bunny
Cas is out on his run
"Bao bao bao.."
Cas: Hm...?