Some scientists get to have a lot of fun. “Hey, let’s do an experiment where we get to shock people – there are endless possibilities here. Oh, and maybe we’ll learn some stuff.” These scientists determined that people would sacrifice a certain amount of pay not to be shocked (no surprise there), but they would sacrifice twice that pay to avoid shocking an anonymous other. This is another indication that altruism is part of human nature. No word on whether the scientists enjoyed themselves immensely.