The Doctor smiles. "I call myself a coward too. And for the same reasons."

The he nods. "My evacuation plan has enough room for everyone and if the barriers are weak as I suspect, I should be able to get everyone home. It just might take awhile."

He shrugs. It's really neither here nor there. But sometime he might show the TARDIS to Plamer. He has some maintenance he needs done and Palmer would probably be hungry for the experience.