There are 2 women getting ready to leave for work. The brunette gets in the driver's seat and the blonde gets in the passenger's seat. The brunette says, "We're late, so you watch out the back window for cops."

As she speeds down the road she asks the blonde, "So, do you see any cops?"
The blonde replies, "Yes."

The brunette says, "Are they behind us?" "Yes."

"Are they close?"
"Yes."

"Are they going to stop us?"
"I don't know."

The brunette says, "Well, are their lights on?"

The blonde replies, "Yes. No. Yes. No. Yes. No. Yes. No. Yes."