Lost, Season Three

[Kate and Sayid are inside the Flame station with Mikhail, who claims to be a member of the DHARMA Initiative; Mikhail is sewing Sayid's bullet injury and the cat is scratching the carpet]

Mikhail:
Будьте вежливы, они - мои гости, Надия.

Sayid:
What did you just say?

Mikhail:
I told Nadia to be polite, because you are my guests.

Sayid:
Nadia?

Mikhail:
After Nadia Comaneci. The greatest athlete the world has even known. We have the same birth date. [...mumbling] Now, excellent work if I say so myself.

Sayid:
Thank you, Mikhail.

Mikhail:
Perhaps, you can give me your forgiveness if I offer you some ice tea. I will also check on your friend.

[...]

Sayid:
What's wrong?

Kate:
Doesn't make any sense. Why would they let him stay here, with all this stuff, all this equipment?

Sayid:
Actually, it makes perfect sense.

Kate:
What are you talking about?

Sayid:
The reason they let him stay here is because he is not DHARMA. He is one of them.

Kate:
He shot you and you just let him-why are we still sitting here?

Sayid:
We are sitting here, Kate, because I am certain he is not alone.