They are very smart...
Years and years ago myself and my then boyfriend were moving into a new house. My two dogs... Chessa (a Siberian Husky) and Doe (a Manchester) had already been moved in but somehow as a sofa was being moved up the stairs the door was not closed behind the people who were helping us. Off they went.
Frantic, I called the local Humane Society as my boyfriend went out in the car to look for them. I was nuts... they didn't know the neighborhood. Humane Society calls back...
They had just got a call from the local market. The dogs had walked in together and were checking out the deli selection. When I arrived about five minutes later the staff had opened a bag of dog food, given them water and much patting.
These furballs KNOW what they are doing...