A variation of the Viper.
A scout runs into a camp of soldiers yelling, "The infantry is coming! The infantry is five miles away!"
The soldiers look up, mumble, and act nervous.
A scout runs into the camp of soldiers, yelling, "The infantry is coming! The infantry is one mile away!"
The soldiers stand up and start gathering their gear.
A scout runs into the camp of soldiers, yelling, "The infantry is coming! They're just over the hill!" All the soldiers scream and run away, in the opposite direction that the scout came from.
Two people run in from the direction the scouts came from, carrying an infant tree. They run after the soldiers.