That dog is assuming things about the two people who are making a racket in that building that he just should not be assuming. But he's a friendly Dobey-mix of some kind or other, so don't put him down for not barking.
I like at how first she steals like, three packs of smokes, and redneck abusive boyfriend flies over the counter to grab more. Clearly, this was not thoroughly planned out. But man, what a pup.
How embarrassing. So when the store owner arrived in the morning, not only were 50 boxes of cigarettes missing, but there were dogs just sitting around everywhere looking pleased with themselves.