How can I stop him from pooping in the house without using a cage?
I take him out regularly, I reward him with treats and petting and 'good boy's and stuff when he poops outside, yet he still goes in the house one out of every two times I leave him completely alone. I don't know whether it's related or not, but he's also recently chewed up the bill on a baseball cap and torn the wool lining out of some slippers. He would never have done anything like that in the past.
My only theory is that I used to work 9-5 and he was used to being alone a lot. Now that I'm home every day, he can't deal with the hour or two that I leave. But that doesn't make sense, does it?