[Zhao scowled at Castiel's observation.]

Dude, watch it. That kinda shit doesn't have to be pointed out, man. Just say 'thank you' like a normal person and leave the rest alone.

[Despite his words though, Zhao wasn't actually offended so much as embarrassed by being called out. He gave the angel one final weird look before glancing away and not-really-at-all hiding a slight smile across his face as he watched Castiel begin to eat from the corner of his vision.]