were there lots of brown droppings around? That looks like a big bite for a mouse! Get a trap and put it in the pantry. I hate mice. I have a 70+ year old house, so we always have mice. Traps are the best bet. I like the reusable kind where you can't see the mouse! Good luck!
Did you check the date on those crackers? If I am reading the package (upside down) right, it looks like they expired 8/16/10! Suprised even the mouse would eat them. You knew nanny would notice this didn't you?
Unfortunately....this might be a common visitor at the taj....remembering back to my taj experience.