I don't know.....she probably stuffed a sandwich in there and depending on bag integrity may not be gluten free but has the smell of fermented mayonnaise!
Unfortunately Frank is in the hospital with severe tetanus due to cutting himself on his chipmunk trap. Chipmunks, when reached for comment, were busy changing the locks on the house.
I can loan you 2 cats though you're wife might not appreciate the game of chipmunk hockey the cats will play until the chipmunk dies. My cats are the Hanson brothers of hockey.