From indirect evidence, like footprints in the dust, size of rat droppings, shed fur, plus some incomplete notes left behind by the rat catcher, you infer that the typical rat weighed a quarter kilogram. (realclimate.org)
Matthew Bennell (Donald Sutherland) is a health inspector who finds rat droppings in the kitchens of San Francisco restaurants, and Elizabeth Driscoll (Brooke Adams) works with him. (combustiblecelluloid.com)
More recently when I went to change out my cabin filter, it was filled with scraps of paper and rat droppings etc.. (redeeminggod.com)