Mischief has been having issues with accidentally letting the dog out. If she is at the door, the dog sees the opportunity and escapes. Yesterday, when the dog escaped, we had a little discussion about how Mischief needs to make sure there is an adult watching Dodger if she opens the door.
So today, when the dog dug under the fence (with help from the neighbor's dog) and escaped, I had to answer questions on how Dodger is able to dig in the dirt. So, I explained how dogs dig in the dirt, and Mischief "dug in the dirt" and asked if that was how Dodger did it.
When Mayhem saw her doing such a fun thing, I then had two little doggies digging in the "dirt" of the living room floor.