If you're worried about the kinds of things they could pull out of your head, just think about what they could pull out of mine.

[Again, honest, but not comforting. Crowley is good at that. Thousands of years of memories of war, disease, famine, pestilence, death... Not to mention the literal Hell.]

I try not to think about it too hard. Really, if I did, it would be all I'd think about.