Smallville, Season 10

(Cat Grant sees Lois and thinking she's the Blur, Cat grabs a pen and stabs her)

Lois Lane:
Ow! Uh What the hell? (goes to punch Cat but is stopped by Clark)

Clark Kent:
Ladies, who wants to go first?

Lois Lane:
She stabbed me!

Cat Grant:
(at the same time as Lois) She's the Blur!

Lois Lane:
That is the dumbest thing I have ever heard. And I thought you were a bottle blonde.