Say the following as if you were reporting a newscast - with a solemn face to match your no-nonsense tone:
One bright morning 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.
Now the deaf policeman heard this noise
And went and shot those two dead boys
If you don't believe this lie is true-
Just ask the blind man - he saw it, too!