An Israeli soldier who just enlisted asked the Commanding Officer for a 3-day pass. 
The CO says "Are you crazy? You just join the Israeli army, and you already want a 3-day pass? You must do something spectacular for that recognition!" So the soldier comes back a day later in an Arab tank! The CO was so impressed, he asked
"How did you do it?" 
"Well, I jumped in a tank, and went toward the border with the Arabs. I approached the border, and saw an Arab tank. I put my white flag up, the Arab tank put his white flag up. I said to the Arab soldier, "Do you want to get a three-day pass? So we exchanged tanks!"