Stargate SG-1, Season 4

Dr. Jackson:
So, how many loops have you-have we-been through?

O'Neill:
Uhhh...I've lost track.

Dr. Jackson:
Wow, that's gotta be frustrating...

O'Neill:
[as though Daniel has just stated the very obvious] Uhh...yeah.

Dr. Jackson:
Still, it seems like sort of an opportunity.

O'Neill:
[In a mildly patronizing tone] ...How's that?

Dr. Jackson:
Well, if you know everything's going to go back to the way it was, then you could do anything... [shot of realization dawning on Teal'c] ...for as long as you want... [shot of realization dawning on O'Neill] ...without having to worry about consequences.

[Shots of O'Neill and Teal'c looking at each other, as the full implications of what Daniel has said sink in]

O'Neill:
...Excuse me. [Gets up and leaves]

[Teal'c puts down the chalk he's been using to write on the blackboard, bows slightly at Daniel, and exits]