My husband and I live in a townhouse (no private yard) in Minnesota. We recently adopted a 3-year-old Japanese Chin named Baxter. Baxter is a wonderful dog. The only real problem is that he will only poop and pee when we are on a walk, which means I will have to be on walks in the dark cold Minnesota winters. Is there any way to teach him to do his business right outside our door without a long walk? This is not a critical issue, but is causing some tension between my husband and I because we disagree on how and whether his behavior can be changed. I appreciate any help I can get.