We adopted a spayed female about 6 weeks ago now, and she is 13 months old. When we first brought her home, she seemed mostly housebroken. Since then it has just deteriorated. We did go through a period where her walks were shortened due to a VERY bad phase of leash biting/acting up/lunging etc. So obviously she ended up relieving herself inside while we worked through that. Now that we're back to long walks, however, she's still going in the house. We use a series of deep clean methods, enzyme cleaners, etc., so I don't think residual smells are the issue. She knows she's supposed to go outside, but she just doesn't seem to be able to (or be willing to) hold it for longer than 2-3 hours. She gets three 15-20 min. walks a day, and every other day she goes to the farm to run and play for an hour on top of that. We're lucky we work from home and can walk her so much, because otherwise the house would be a disaster. She does it mostly when we're not in the room, but sometimes she will just sneak off into a corner and do it when we're just on the other side of the room, and I KNOW she knows better than that. I know that people who work 9-5 have boxers, so I know it's doable. How is it that she just can't cope with holding it just a while longer?