i have a welsh terrior that used to be pretty good about going to the bathroom outside! used to have an accident every so often... but now its turned into an everyday thing! ill take him for a nice 20 minute walk and almost the instant we get inside he will poop on the floor... if i catch him mid poop and take him outside right away he will not go and then will finish once we get back inside?! he is about 1.5 years old and is an apartment dog for the next month or so, so i cant just keep him in his crate while he is inside since thats where he gets most of his play time? it seems to have gotten worse since the addition of a new puppy? but the puppy is really good about not going inside so i dont think he is picking up bad habits from her? any help or suggestions would be great!! please and thank you!!