Once Little Johny decided to do some experiments on a dog.
For the first experiment,
He cut one of the dog’s legs off, then he told the dog to walk.
The dog got up and walked, so he learned that a dog could walk with just three legs.
For the second experiment,
He cut off a second leg from the dog, then he told the dog to walk once more. The dog was still able to walk with only two legs.
For the third experiment,
He cut off yet another leg from the dog and once more he told the dog to walk. However, the dog wasn’t able to walk with only one leg.
As a result of these three experiments, Little Johny concluded in the final report that the dog had lost it’s hearing after having three legs cut off.