Here are three interesting items that I unearthed in my office at school. Those are rat fetuses... rat fetii? And in the paper bag is a mummified arm. Yes, a mummified arm. The pork brains more or less explain themselves - to the extent that pork brains can be explained. The can has puffed up due to it's age and the inevitable kabillions of bacteria that are just DYING to escape when someone braves opening it.