I remember a story my uncle told me about when he was in Vietnam,it goes like this,When I was in Vietnam I was an engineer. We went to Germany and a german asked,"do you want to ride in our tank?"He said,"sure why not."they rode around and came back. He also told me that they would race jeeps up the side of a mountain. The sergent would always say,"It's all fun and games until someone rolls a jeep." And sure enough someone did roll a jeep.Also when they stayed in Germany they would get up for formation it was always cold. One day he got tired of that and filled a coffee can full of sand and dumped gasoline in and lit it and put it by his feet. It must have pissed off the sergent because he made him do 65 push ups!