Oh don't be a grumpy lizard of enormous size. Or you know, weird dragon-not-dragon thing. What is Meg supposed to think when he goes around wearing a saddle? A saddle suggests ownership... maybe she should get a saddle or a leash for Cas...

"So... You hungry?" She really hopes that well as being house trained, that his appetite is not equal to his size, otherwise he'll eat everything the kitchen has to offer. Not that it would make much difference to her, but she would rather her humans didn't starve.