"My younger brother was the same, and you should see him now." Dean checks the line to see nothing but the poor worm that is long past its expiration date dangling from the hook. He figured he wasn't going to catch a fish out here, but it was the getting out that was what he wanted to do.

And as far as explaining things, nothing beats trying to explain things to Castiel. So, Dean is a pro at explaining modern human things to people! Just so long as he doesn't have to explain porn to Steve, all will be good in the world. Once was enough there as far as Dean is concerned.

"Well seeing as people can travel to different places, you ever see modern day Brooklyn. Or the Brooklyn of the Future?" Dean asks. "Or is there too much of a risk of you messing things up for you back home."