A Greek city was preparing to fight the Persians. They sharpened their weapons and readied their granaries.

A messenger came to them from the Persian camp: “Surrender, and we will spare your miserable lives for now.”

The Greeks would have none of it. They turned the Persian away.  

His anger rose along with his voice: “Don’t say I didn’t warn you. Did you know, our arrows fly so thick, they blot out the sun?”

This was the best news the Greeks had heard all day. Always the optimists, they spat back: “Then we shall fight in the shade!”