A guy and a girl get on an elevator in a hospital. The guy hits three and asks the girl, “Which floor?” To which she replies, “Four, please.” Making conversation, the girl says, “I’m here to give blood. What are you here for?” The guy says, “I’m actually here to donate sperm. They give me P4,000 for it.” “That’s unfair! I only get P500 for giving plasma!” she says. They get off the elevators on their respective floors.