According to a new poll of 2,000 Americans, 44 percent follow the so-called “five second rule.” This common rule of thumb states that if you drop food on the floor, you have five seconds to pick it up and eat it without worrying about cleanliness. Depending on the scenario, 52 percent agree that there are some places they would extend the rule to 10 seconds. Those places include their own home (63%), a restaurant (55%), and a hospital or medical facility (55%).