Cas: Yeah...Old...Mac...?
"...Mac Don!"
Cas grins
Cas: Yeah that's right!
"Old..MacDonall!"
Cas: Yes!
He giggled
Cas continues reading
"...cow go moo! Cluck cluck quack!"
Cas: Yeah! Duck go quack!
He snatches the book out of Cas's hands and started nomming on it
