The document discusses the risks of not wearing shoes, such as contracting toxoplasmosis. Toxoplasmosis is caused by the protozoan Toxoplasma gondii, which cats can spread through their feces. Humans can become infected through contact with contaminated soil or undercooked meat. The parasite can enter the body through cuts or scratches and cause blindness or other health issues. It emphasizes that while cats may seem harmless, they are actually carriers that can infect other animals through their role in the parasite's life cycle.