Standing outside in driving rain at 4 am, I’m reminded of something I already know well: teaching someone to manage his bowel and bladder habits represents a significant investment. Eight-week old puppy Davy came to live at my house recently. While we’re quickly falling in love with this little guy, teaching him to potty outside has been a challenge. The whole experience puts me in solidarity with parents who are working to achieve that same sort of control with their toddlers. Training a puppy