Smart Pills

One day a boy and his father were walking through the woods when the son spotted some rabbit droppings.
The boy asked his Dad, “What are these Pop?”
Wanting to tease his son, the father replied, “They’re smart pills, son. Eat them and they’ll make you smarter.”
So the boy ate them and said, “Yuck, they taste just like poop!”
“See,” said his father giggling, “you’re already getting smarter!”