Where does poo came from?

Laughter, along with an active sense of humor, may help protect you against a heart attack they say.

I just received a very funny sms on a conversation between a little girl and his dad and i wanna show this to all you readers. Here it is:

A little girl walks up to her dad one morning asking "dad,where does poo came from?". The father was surprised dat his three-year old thought of such complex question. "You know how we just ate breakfast?", said the father. "Yes," nodded the little girl. "Well, the food goes into our tummies and our bodies take all the good stuff. Whatever is left comes out of our bottoms when we go to the toilet and thats POO." The little girl looked shocked, her eyes watery and was about to cry as she asked..."and Tigger?"

For those who doesnt knew Pooh, here's how he looked like -> here.