Well….you are not alone in this. There are many dogs that seem to “enjoy” doing this. I had a Cavalier (at the bridge now) that has been known to partake. What I did with her and it seemed to work was I added enzymes to her food. In her case I used a supplement called Solid Gold Seameal. I think sometimes it can be a behavior, attention getting problem. Sometimes it can be the food, I believe. In Stella’s case I’m not sure what it was because she was eating a high quality food, but the Seameal worked. A little while after I started adding it to her food she stopped doing it. I added a canned topper to her dry so put the Seameal in that. As for the Science Diet kibble being the cause, who knows….I do know that you could probably find a little higher quality food for her. I’m not a Science Diet fan, myself, sorry. But if you don’t want to change her food at least adding enzymes or a probiotic/enzyme supplement can’t hurt.
