[... He quirks a brow, watches Dean struggle for a moment, and then just leaves him to it without comment.

Suffer for your terrible choices, Dean.]

Okay, well. For one, you're probably gonna puke halfway down that thing. It smells like a body-dumping site. [And the less Sam smells something like that, the better; sometimes he gets little flashes from Lucifer's time wearing him, and the smell of the dead, it —

... He just doesn't need that in his life.]

And uh. For another... It can be bad enough to get you two eaten by freakish cave monsters. I can't exactly get to you guys in time, if you need back-up. If you even have reception that far down...

[+30% more concern, in the lines of his brow]