You don't have to be a parent for very long before you recognize what can only be called a poo poo face. That's the one you kid makes when it's time to fill a diaper. It may be a smile, a look of surprise or a look of wide-eyed wonder, but it all boils down to the same thing. Someone is about to change a diaper.

I'll warn you up front that this is actually a commercial for Pampers, but the footage is so universal that I just had to share it with you. Each kid in the video has their own facial expression, their own body language, and their own attitude about filling their diapers.

If you have kids, you'll know some of these faces.