No matter how clean you may keep your home with a cat in it, there’s a 25% chance you could be carrying a parasite transmitted through cat droppings. In fact, two billion people around the world carry Toxoplasma gondii, so there’s a good chance it’s in your body too.

One curious outcome of this research found that students infected with Toxoplasma were 40% more likely to major in business at university, and 70% more likely to emphasize “management and entrepreneurship” in their business studies. So if you ever thought that corporate executives were full of crap, you may be right.

To learn more about cat parasites that could be in you right now, click here.