My dog is an 8 month dog old golden retriever and he will only poop in a certain place a certain way far from my apartment. He will only go poop if he is off leash and in the complex dog park. I want him to be able to go wherever outside or at least on command. How do I get him out of the habit? Can I completely avoid the park and make him poop or hold it longer? How long would I be able to do that so he doesn’t become too constipated?