Well, it was Sally's food - Stumpy just decided she was going to butt in. She kept her eyes wide open the whole time staring at Sally who was just happily munching away.
Stumpy is a lot darker than Sally, but gee they really are alike in personality. Sally does so many things that remind me so much of Stumpy - it certainly makes sure we don't want to keep her - one ratbag in the house is enough!