In a new report, Dog Behavorists insist dogs "lack shame".  They say dog brains lack the capacity for form that emotion.

They say the guilty look — head cowered, ears back, eyes droopy — is a reaction to your emotion.  not over what they did hours earlier.

Dr. Bonnie Beaver a professor at Texas A and M Universitys College of Veterinary Medicine and executive director of the American Collage of Veterinary Behaviorists sqys "Just get over it and remind yourself not to put temptation in the way next time.,”

There are websites that disagree with the doctor; was the first and is among the most popular sites. Since Pascale Lemire started it in August 2012, it has received more than 58 million page views and more than 65,000 submissions. A submission has to come with a photo showing the dog’s guilty look.