Threadless has a fetching new T-shirt aimed at spreading the word about the growing epidemic of dog owners who won't pick up after their pets. The shirt features various cartoon and comic strip dogs and their owners, um, doing their thing, including Snoopy and Charlie Brown, Scooby Doo and Shaggy, and Homer Simpson and Santa's Little Helper. If I ever had the urge to wear a shirt featuring dogs dropping a deuce, which I haven't, this would be the shirt for me.