This is what I saw on one of the streets of New York. And yes indeed, if you walk your dog on the streets, as in any other place in the country, be prepared to scoop up its poop - or face the consequences. Which explains the plastic bags dog owners carry while walking their pets. In Seattle, one evening a strange woman knocked at our door, and asked for a plastic bag. "I am so sorry," she said , "I forgot to bring a bag with me, and my dog has messed up the pavement."