Blonde in court

[rebbonk]

A blonde was summoned to court to appear as a witness in a lawsuit. The prosecutor opened his questioning with, "Where were you the night of August 24th?"

"Objection!" said the defence attorney. "Irrelevant!"

"Oh, that's okay," said the blonde from the witness stand. "I don't mind answering the question."

"I object!" the defence said again.

"No, really," said the blonde. "I'll answer."

The judge ruled: "If the witness insists on answering, there is no reason for the defence to object."

So the prosecutor repeated the question: "Where were you the night of August 24th?"

The blonde replied brightly, -----

Spoiler:

"I don't know!"