A friend posted recently that she felt it was time to kill her dogs. I asked her, "what did they do this time?" The dogs had apparently used the living room as their "personal toilet". She was kidding about killing her dogs, of course, but we can all identify with the frustration she was feeling.
I thought about this and it occurred to me, this friend has relocated several times since becoming a dog owner and both her canine companions are still rather young. It seems that relocating to a new environment is what's disrupting the housebreaking and causing serious setback. It makes sense that the dog no longer knows what door leads to the great outdoors, everything is unfamiliar.
Any new environment should be coupled with reintroducing the dog to proper and expected bathroom behavior just as you did when initially housebreaking him. There is the preferred door for going out, the timing (first thing in the morning, after meals, before bed, etc.), the praise; all that. With the dog being more mature, the reintroduction of bathroom duties should not take as long as it initially did when he was a youngster but it is just as important to teach the dog that "this is how it's done" in the new environment.
Therapy dogs visiting a new facility need the same reinforcement. Making an initial trip to the new facility to learn your way around, meet staff and locate a "bathroom area" for your dog is time well spent. Figure out if you'll need plastic bags for cleanup, or if the area is remote/vegetated enough to not worry. When you take your dog to the facility for the first time, visit the "bathroom area" before entering the facility. Any therapy dog should be given the opportunity to relieve himself before going to work.
Note! I've taught all my dogs "key words" for elimination, "go potty", "go poop", etc. Just as with the post bath command, "shake!", this is taught as the dog is doing said activity. The dog learns to associate the word "potty" with urinating. Eventually, you can give the command and if the dog needs to go, he will.
Keep plastic bags in your car for fecal pickup. This is a must for all public areas. If I can't find an outside waist receptacle for it, I tie it to the bumper of my car. Using grocery plastic bags makes this easy as the handles are long enough to tie around a ball hitch securely till I get home and can toss it in my own garbage can.
Picking up poop 101: Use clean plastic bags. Get one (or two) plastic bags (if two, put one inside the other). Place your hand in the bag(s) like putting on a glove. Using your "gloved" hand, pick up the poop. Turn the bag(s) inside out and "voila!" the poop is in the bag. Knot securely.
