People are more likely to eat expired food if they already own it, a group of researchers offering rotten smoothies discovered. "Our results help explain why a person might consume expired food that they found in the fridge, but not consume expired food found in a friend's fridge," a study author told the Washington Post. Either that, or because it's generally frowned upon to go over to someone's house and start rooting through their moldy leftovers for a snack.
Further confirming that they are not familiar with actual human behavior, the researchers also attempted to analyze the "five-second rule" of eating food off the ground. Kindergartners everywhere are eagerly awaiting follow-up research to confirm precisely when dropped food becomes too dirty to eat.