Little boy asks...

Little boy asks dad "where does poo come from?"
Dad explains " food passes down the oesophagus to the stomach where the digestive enzymes induce a pro-biotic reaction in the alimentary canal before waste products descend via the colon and rectum to emerge as poo "
"Blimey!" says little boy
Dad explains " food passes down the oesophagus to the stomach where the digestive enzymes induce a pro-biotic reaction in the alimentary canal before waste products descend via the colon and rectum to emerge as poo "
"Blimey!" says little boy
Spoiler: