Little Billy is standing in the barn with his grandpa
There are rabbits in the barn and their droppings are all over the floor.
The boy says, "What are all these pellets on the ground, grandpa?"
Grandpa says, "They're smart pills, Billy. Eat them and you'll get smarter."
Little Billy liked the sound of that so he grabbed a handful off the ground and shoved them in his mouth. He immediately spit them out and said, "Ugh, those taste like crap, grandpa!"
Grandpa says, "See you're getting smarter already."