THE DOG DID IT!!!!!
Here’s what happened:
Storm blew in and Fido went a bit psycho and pushed that back door open.
Being a pedigree (collage educated) it pushes the screen door open (I’ve seen this).
Finds an escape point between the fences (seen this too), avoiding the need to use the gate code, (told you it was smart).
Now here is where it’s gets even stranger; the next day we find out that:
On the evening in question a neighbor complains of being “pushed” aside by something as they are coming into their home.
After lots of “wanted posters” and frantic phone calls; Fido is found the next morning resting comfortably in my front neighbors bedroom.
Moral of the story;
This dog is smarter then your 5th grader.