老鼠特别是栖身于洞穴阴沟的褐鼠(最常见的家鼠),所以人人皆曰可杀,除了对人类世界有破坏无建设并经常偷吃食物及啮咬一切“就口”的物品令人憎恶外,更重要的还是传播病菌,传染病理学家给老鼠取个“细菌电梯”(germ Mice, especially brown rats (the most common house mouse) in the caves of the cave, kill everybody, except to destroy the human world without building and often eating food and bite. Objectionable items, but more importantly, spread germs, infectious pathologists give mice a “germ elevator” (germ