Dean was in hell.
Cas-TL and Samsquatch had demanded to pick the location of their next rest stop after the fiasco on Vegas XXVI. And the location they had selected was the Tri-Quadrant Science Fair. And not a fair devoted to blasters and force shields and other cool and useful stuff. No, a fair devoted to astrophysics.
Who needs astrophysics when you live in space?
So while they were enjoying lectures on quarks and wormholes and black holes or whatever, Dean was actually wishing he was back on the Impala with G