So you kept it from us so no one agrees to go on a field trip down there with some jackass with a vendetta? Gee, Castiel, how about maybe... telling us not to get into the candy van with strangers. It was gonna get out, eventually. Nothing stays secret around here.

[He kneels down so he's high level with Castiel.] And if we didn't know? Then some jackass would've figured it out and then we'd be massively boned. I think you oughta know by now that keeping secrets gets you in trouble.