A tiny toy poodle. He had been in the hospital for a couple days due to anemia caused by a flea infestation so severe the fleas were literally crawling out of his eye sockets and other orifices. His red blood cell count was 12% (normal is ~37-55%). We got rid of the fleas and stabilized him and sent him home but he had a stroke the next day and lost the use of his hind legs.

The whole thing was especially frustrating because it could have so easily been prevented with the application flea medicine.