There is nothing more frustrating for women than seeing men zip in and out of public bathrooms, while they wait in endless lines. So much so, that groups in the U.S. have fought for, and won, increased numbers of women’s stalls in arenas, museums and other public spaces. Now it is the turn of Congress to consider the issue as H.R. 4869, the Restroom Gender Parity in Federal Buildings Act, winds its way through the political process. Along the way, the Post’s Dana Milbank, never one to shy away from a naturally hilarious topic, includes every bathroom pun he can think of, including a deliciously clever use of No. 1 and No. 2.