Every once in a while however he doesn't "deliver the goods" during one of our walks. It is usually not a big deal and the next walk he will usually go twice.
However, and this has happened a couple of times recently. When I am expecting a double delivery due to a previously poopless walk, he only goes once and he does not yeild twice the usual amount. This leads me to the question; Where does it go?
joystormer suggested I bring him to the vet and tell them. Perhaps they can find the missing matter. "Excuse me, Dr., I am missing some poop. Could you look in my dog?"
I am going to start bringing a scale. I know I keep feeding him consistently.