“Things Past” (DS9 5x8)

Garak: Something’s wrong. Thrax talked about a Captain Livara. 

Sisko: Does that name mean something to you?

Garak: Livara wasn’t just another smuggler. He was a Romulan spy and didn’t begin working in this sector until seven years ago, but seven years ago Thrax wasn’t on Terek Nor – you were, Odo. An odd contradiction. So I checked the date. This is seven years ago. Thrax shouldn’t be here. You should be the security chief.  

Odo: None of this makes any sense, Garak. Now I suggest we concentrate on finding a way out of here. That’s our priority. 

Sisko: I tend to agree.

Garak: Oh, you’ll get no argument from me. 

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Fans of Garak with disheveled hair, rejoice :)

Also, notice how neither Sisko nor Odo questions that Garak knows this shit about the Romulan spy.