Yeah that totally fits with what I was thinking, which was basically, 'Well the minute Cas figures this out he's just going to ditch Dean and sneak out of camp with a big Eat Me sign pasted on his chest because god knows those boys can't stop sacrificing themselves.' And I found it curious that Sam was the one who suggested doing him in, since Sam is normally the crybaby, but I guess Dean was distracted by his big gay epic love so you know that makes sense.

A postcard:

TO: SAM
CAMP CHITAQUA

HEY WE MADE IT TO THE TREELINE I'LL SEND YOU ANOTHER IF WE GET PAST ANOTHER HUNDRED FEET. SO FAR THE WEATHER IS FINE BUT THERE'S BLOOD ALL OVER MY GODDAMN PACK. STOP WAVING, YOU LOOK LIKE A KICKED PUPPY. P.S. CAS SAYS HI.