Happy Couple with their new puppy. Bringing home a new puppy is exciting, but many first-time owners accidentally make training mistakes that can create bad habits later. The good news is that most puppy behavior problems can be prevented with patience, consistency, and the right training methods. Here are seven of the most common puppy training mistakes and what you can do instead. 1. Being Inconsistent With Rules One day the puppy is allowed on the couch. The next day they'