This is one of two poems I have ever memorized. (the other is a short poem about catsup.) I first learned it who knows where when I was about 5, and it's stuck in my head ever since. Enjoy.
One bright day in the middle of the night,
Two dead boys got up to fight.
Back-to-back they faced each other,
Drew their swords, and shot each other.
A deaf policeman heard the noise,
Came and killed those two dead boys.
If you don't believe this lie is true,
Ask the blind man, because he saw it too.