Our 2-year-old male Jack has always gone pee and poop in the grass with no problems, but for some reason the past few weeks, he's occasionally hesitant to come off the steps or the driveway concrete to do his business. I have to coax him down or walk away so he follows. Sometimes he just steps off the edge of the concrete into the grass to go. He's also peeing in our playground area, which is chipped rubber, and pooped there once, which he's never done. Not sure if it's a texture thing with the grass or what's going on. It's not all the time, but enough to be puzzling.