Easy, if you're Diane Keaton you swear like a titting docker at the most inappropriate time you can think of, that's what. On a live visit to Good Morning America to promote her Mad Money film yesterday, Diane Keaton decided to screech "If I had lips like yours I wouldn't have to work on my fucking personality!" at host Diane Sawyer like some sort of pottymouthed harpy.

Yes, we've got video.