Smallville, Season 3

Clark:
What happened to you?

Pete:
FBI agent decided to go off payroll, wanted to know about you. Don't worry, I didn't tell him anything.

Clark:
I should have been there.

Pete:
That's just it. You can't always be there. I gotta look out for myself. I just thought you should know they're onto you.

Clark:
Thanks for the warning.

Pete:
Clark, the FBI isn't who I'm really warning you about. Lex was there. He's the one who pulled the Fed off me.

Clark:
He's investigating his father, not me.

Pete:
That doesn't matter. He knows. Now, I'm not exactly sure how much, but he's not gonna stop until he's got everything. Clark you've got to keep an eye on him. Look out for yourself.