"I want to ask you to prove it, but..." Russell frowns at him. "I don't know enough to know if you're just making sounds at me. Let me see..."

It's a slight obstacle to proving Walter's claims, unless they call up Benjiro, or reference some online translation system. With that thought, Russell pulls his phone out again, and starts clicking through to somewhere he can get Walter to show him translations. He swipes out some sentences, taps the translate button, and looks up.

"Okay, tell me 'Nevermind, Russell, you didn't agree to anything - I was joking with you.'"