The last shrimp. If no one’s looking, I’ll eat it. But wait, someone else has spotted it and is moving in. Will they be too polite to eat the last one? “Oh, is that the last one? Were you going to have it?” Feign disinterest. “Oh, I guess not…go ahead, you have it.” “No, I couldn’t!” Pause for a nanosecond. Grab it with a slosh through the cocktail sauce. Yum. “Thanks!”