Discovery is an important part of a pet’s life. You have to let them learn things on their own, like how the vacuum cleaner isn’t as much as a threat as they thought or how the nasty dog across the street does not want to be friends. You have to give them space to grow as their own selves so that they don’t think that your house is the only place in the world. On another note, don’t let them run away. Depending on their training, they might not come back.