For my intro to sociology class, I gave an assignment for the students to find the worst social statistic that they could find (and I would give a prize for the worst one). I figured that this would be a good way to get them to evaluate critically a wide range of social statistics. Instead, they all just googled "bad statistics." What they brought in was entertaining, and they had to explain why the statistic was bad, but it wasn't quite the learning experience that I was looking for. I guess that if I were younger, I would have anticipated what happened.