Yesterday I was at our local BJs buying things in bulk I don't need. In the checkout line next to me an elderly gentleman was buying a large bag of Purina dog chow. A middle aged woman in line, making eye contact with him, smiled and inquired, "Do you have a dog?" The old man paused for a few seconds and then said "No, I'm trying the Purina Diet again." Puzzled and curious the woman repeated "The Purina Diet?" As other shoppers leaned in to hear, he proceeded "I probably shouldn't. Last time I went on this diet I ended up in the hospital." "Really?", came the reply. "Yes", he continued, "But its the perfect diet. You load your pants pockets with Purina nuggets and simply eat one or two whenever you feel hungry." Horrified, she asked, "Did the dog food make you sick? Is that how you ended up in the hospital?" "No", he told her, "I stepped off a curb to sniff an Irish Setter's butt and a '57 Chevy hit us both".