From the picture below, we can see rats eating leftover foods in dishes, spoons, forks and other kitchenware. This could cause Salmonellosis. A harmful effect on one's health caused by a bacterial infection contracted by eating food contaminated by rat feces. I can prevent this by washing the dishes and other kitchenwares after eating and throw the leftover foods in the trash. Having a compost pit is better to easily throw leftovers which can benefit our environment and our health.