A Long Walk

I finished a long walk following a river through a frozen marsh. The river wanders attentively deficient, probably distracted by the slim tributaries that sporadically feed it ideas. Doc, a Chesapeake Bay Retriever who owns me, was trudging a few paces in front of me. The crunch of the cold apple didn't catch his attention and Doc likes apples as much as anything and he knows when I'm eating anything. The second bite I took to share a chunk. I looked at my big headed, four legged pal and said, "Aaron,ah Patrick, er DOC!" Where did that come from?