Granny and grandpa were sitting on the porch watching the sunset. Feeling reflective, grandpa commented on the lovely, lively 60 years of marriage they had. Suddenly, granny reached over and slapped granpa across the face. "What was that for!?!?" he spluttered. "That's for making me put up with such a small willy all these years!!!!" she retorted. A few minutes passed as the sun settled below the horizon. Quickly grandpa reach over and knocked granny completely off her rocking chair. "What was that for!?!?" she wailed. "That was just for knowing the difference!!!!"