Why in fact we have a dog just like that... who made sure we were good and gone before mutating into some sort of new gopher dog breed, and got to diggin, and diggin.... and diggin.
So one day when her owners returned from their vacation, the master owner decided to do some yard work...
I can almost hear him saying "WHAT THE..."
"Did you do this....???"
"...this monstrosity of a tunnel??"
"But I was hot and it's so nice down here...and I needed my own place..."
"and....oh...oops I'm sorry"
Unfortunately "I'm sorry" doesn't cut it around here... so what did the owner do?
Well he buried that darn dog of course!