House training an adult dog requires patience, consistency, and positive reinforcement. Start by establishing a regular feeding schedule and taking your dog outside to eliminate at the same times every day. Use a designated potty area and reward your dog with treats and praise when they go in the right spot. Supervise your dog indoors and watch for signs that they need to go outside, such as sniffing or circling. Accidents may happen, but avoid punishment and instead clean up the mess thoroughly and continue with the training process. With time and consistency, your adult dog can learn to be house trained. **

An adult dog may defecate in the house for a variety of reasons, including medical issues, anxiety, lack of proper training, or changes in their environment. Medical issues such as gastrointestinal problems or urinary tract infections can cause a dog to have accidents indoors. Anxiety or stress can also lead to inappropriate elimination, as can changes in routine or environment. Additionally, if a dog has not been properly trained or is not given enough opportunities to go outside, they may have accidents indoors. It's important to address the underlying cause of the behavior and provide proper training and support to prevent further accidents. **

There are a few reasons why an adult female dog may no longer be house-trained. It could be due to a medical issue such as a urinary tract infection or incontinence. It could also be a behavioral issue such as anxiety or stress. It's important to consult with a veterinarian to rule out any medical issues and then work with a professional dog trainer to address any behavioral issues and retrain the dog if necessary. **

The time it takes to house train an adult dog can vary depending on the dog's previous training and individual temperament. Generally, it can take anywhere from a few weeks to a few months to fully house train an adult dog. Consistency, positive reinforcement, and patience are key to successfully house training an adult dog. It's important to establish a routine, take the dog outside frequently, and praise and reward them for going to the bathroom outside. **

Yes, the dog is house-trained. It has been taught to go to the bathroom outside and knows to wait until it is let out. The dog understands the rules of the house and follows them consistently. **

There could be several reasons why your dog is not going into the dog house. It's possible that the dog house is too small or uncomfortable for your dog, or it may not feel safe or secure inside. Your dog may also prefer being closer to you or other family members instead of being in the dog house. Additionally, if the dog house is too hot, cold, or lacks proper ventilation, your dog may choose to stay outside instead. **

No, dogs do not need an S-Bahn ticket in most cases. Small dogs that can be carried in a bag or on a leash may travel for free on public transportation in many cities. However, larger dogs may require a reduced fare ticket or a separate ticket depending on the transportation provider's rules. It is always best to check with the specific transportation company for their pet policy before traveling with a dog. **

It is unclear from the information provided whether the dog is house-trained at the family's friends' house. The dog's behavior of urinating on the carpet suggests that it may not be fully house-trained in that particular environment. It is possible that the dog is not used to the new surroundings or may be feeling anxious, leading to accidents inside the house. It would be helpful for the family to monitor the dog's behavior and provide additional training or support as needed. **