So these two vampire bats are hanging upside down in their cave, and they're really hungry. But it's daytime, not the time to be out hunting. "The heck with it," one says. "I'm going out looking for some blood." "You can't go out now," says the other. "It's broad daylight. You'll never find any blood." "Well, maybe not, but I'm going to try anyway," says the first, and out he goes. Not long after, he returns, and wouldn't you know it, his face is smeared with blood. "Hey," says the second bat. "What happened??" "You see that big tree out there?" says the first. "Yeah, I see it," says bat number 2. "Well I didn't."