I just learned that when you flush your toilet, the airborne pathogens can go as far as 200 feet (most bathrooms are not that big) and can last up to a week or more and they land on everything in sight--toothbrushes, toys, and anything in your bathroom! So finally we know now why a toilet seat has a lid.
PUT YOUR TOILET LID DOWN BEFORE YOU FLUSH--you'll be safer if you do.