a blonde hottie is speeding down the road in her little red sports car when she's pulled over by a blonde policewoman. the cop asks to see the girl's driver's license. she digs through her handbag, getting progressively more agitated. "what does it look like?" she asks dimly.
"it's rectangular, and it has your picture on it," explains the policewoman.
the blonde finally pulls out a rectangular mirror, looks at it, and hands it to the policewoman. "here it is," she says.
the blonde policewoman looks at the mirror, then hands it back and says, "oh, sorry. I didnt realize you were a cop."