A blonde is walking down the street with her blouse open…

A blonde is walking down the street with her blouse open and her right breast hanging out. A policeman approaches her and says, “Ma’am, are you aware that I could cite you for indecent exposure?”
She says, “Why, officer?”
“Because your breast is hanging out.”
She looks down and says, “OH MY GOODNESS! I left the baby on the bus again!”