An American, a Russian, and a Polock escape from prison. The American tells the others that the security will soon be looking for them. So, he suggests that each one of them
climb a tree, and when the guards come, to make animal sounds and hopefully they will move on.
All agree, and they all climb into different trees and try to hide. A while later, security guards arrive and began searching. They thought they saw someting in the American's tree, so they shine their flashlight into the branches and say "Anyone UP there?" "Tweet, Tweet" comes from the tree, so one of the guards says "Oh, it's only a bird!, move on." The guards then look into another tree and says "Anyone UP
there?" and the Russian replies "Whhoo, Whhoo". "Ah! It's only an owl!, lets go!" The guards proceed to look at the Polock's tree, and ask "I wonder if one of the prisoners are up there?"
Shining the flashlight, they listened intently...
"MOOOOOOOOOOOOOOOOO!"