User blog comment:Rafe Adler/"Rock Never Dies" Discussion/@comment-24695878-20161202135239/@comment-1975828-20161202145004

Castiel used the insult three times, in "Swan Song", "The Devil in the Details" and "Rock Never Dies".

As for Crowley, I believe his vessel is now his body. The injuries are his own. As a demon, he can escape the body by choice, but I believe that is the only difference. Alive or not, he's in control and anything done to it affects him.