Rude, him? ...Duh? What's that got to do with anything, he sees no valid connection.

He raises an eyebrow in skepticism. The Spirit suspects there's something getting talked around - intentionally talked around, this time. He doesn't have enough to guess at what yet though. He's gotten enough clues to keep digging just a bit longer...

"Weird how? And define 'ghosts'."

Jonouchi might just mean the Spirit and the Pharaoh, but it's still an opening to work with.