Season 7, Episode 21: "The Bottle Deposit"

Oh, I see. Interesting. Well, that's quite a project.

All right. Thank you.

I'm sorry that I doubted you.

Whatever you need, just make yourself at home.

So he explained it all to you?

Yes, he explained it all very clearly.

-What did he tell you? -Look, you were right, I was wrong.

You don't have to humiliate me about it.