Daniel Craig / Layer Cake 
Q, was Cas ever invited to stay in the bunker? Full time? There always this discussion with "Cas always leaves" etc but i dont remember if Cas actually was invited? You can stay somewhere temporarily without an invite full-time. i.e a friends house where you can go to every weekend but the unspoken agreement is clear; you leave at some point, there would have to be an explicit request to change the terms to move in, no one would just stay permantely otherwise. Did Cas ever get an offer?