A blonde woman is speeding down the road in her little red sports car
and is pulled over by a female police officer who is also a blonde. The
blonde cop asked to see the blonde driver's license.

She digs through her purse and gets progressively more agitated.
"What does the license look like?" she finally asks
The policewoman replies, "It's square and it has your picture on it."

The blonde driver finally finds a square mirror, looks at it
and hands it to the blonde policewoman. "Here it is," she says.
The blonde officer looks at the mirror, then hands it back saying,
"Okay, you can go. Sorry, I didn't realize you were a cop."