That startles a bark of laughter out of Crowley. "And I thought my old name was rubbish, at least it wasn't Fergus, that's downright embarrassing, the poor man."

This is one of those situations where the rest of Sam's statement finally catches up with him, and an eyebrow goes up. "Hold on, when he was alive? The poor bastard's a ghost?"

That's his first assumption when it comes to dead things. It could be vampires or something, but ghosts are simpler.