Which brings me to my next point. They say that it takes 7 years to digest a piece of gum. What "they" fail to mention is the fact that a piece of gum is not going to stay in you for 7 years. The GI tract is no respecter of foods. The stomach does not have a brain that "chooses" if something has been broken down enough to move on to the small intestines. The small intestine doesn't filter out chunks of undigested matter and fling it up-bowel for another absorptive pass. The digestive tract is simply a large conveyor belt, where the body takes as much as it can, and microbes feed off of the rest until it and it's resulting fumes are expelled.
Which brings me to my next point. Apparently, our bodies don't find the cloth used to make Polly Pocket clothing to be very nutritious. Neither do the microbes.
Which brings me to my next point. I think that was the first time my baby ever pooped something solid.