Puppies would much rather play with leaves and bugs than go potty, if you aren’t there to see that you won’t know your pup needs to go back into his crate and come out again 5-10 minutes later! He will learn to sneak away, and have accidents inside. If you leave him outside for an extended period of time, chances are when you bring him back in he will need to go outside again soon or have an accident.
A satirized version of Millan was portrayed in "Tsst", the May 3, 2006, episode of the Comedy Central animated series South Park. In the episode, Liane Cartman enlists Millan's help in applying his principles to her misbehaving son, Eric Cartman. The principles work and Eric temporarily becomes completely reformed. However, in the end when he refuses to go on an outing with his mother, she caves in to his demands in order to persuade him to go along with her, thus reverting his behavior to its original state. In 2010, when Millan was asked if he was offended at all by the episode, he stated that the creators of the show (Trey Parker and Matt Stone) contacted him to inform him of their intentions beforehand and that he found the episode fantastic. Millan reacted to the episode in a video posted on November 13, 2019 to his YouTube channel.
Just because your new dog is old enough that he should know where to potty doesn’t mean that he actually does. An adult dog has the necessary muscle control to hold it for longer periods of time, but if no one ever taught him the potty training rules then he’s the equivalent of a brand new puppy. Age should not be equated with housetraining prowess, so it’s a good idea to treat any dog new to your home as if he’s still learning the potty training ropes.