It's always good to have a healthy dose of skepticism, but this little pup might have overdone it.
The dog apparently can't believe that a patio door is actually open when it's time to go inside. Our furry friend stands outside the entrance as the humans cajole it to no avail. It's only after one of them pretends to turn an invisible knob that the dog makes a grand (and slightly sheepish) entrance.
Aww. Life is ruff.