Pies make great weapons. Delicious, nutritious weapons. They make stupid charts. Evil, lame, boring charts. And we all know that pie charts kill kittens.
So, in the words of Nancy Reagan, "Just Say No". Unless you're in Colorado or Washington. Then just say, "
Dave's not here, man". Take some time, put a little thought into it, and you can come up with a much better illustration of your data.