On time we had foolishly entered a gate were driving past the nuclear capable planes (B52's I think) at Barksdale Air Force base in Louisiana, and were only a couple of hundred feet away from the planes. It only took a few minutes until an armored vehicle with a 50mm machine gun on it (and seriously pointed at us) stopped our car and we were ordered to get out and lay on the hot concrete with our hands behind our necks. Other security vehicles surrounded us. My fat boss was sweating like crazy, especially since it was 106 degrees outside. After some minutes of explanation (and calls to the Master Sergeant), we were allowed to stand up and were escorted across the concrete to the jet engine test stand, which was our destination. After that, big tricycles were our normal mode of transportation since we needed to travel from the buildings to close to the air strip (where the jet engine test stand was) regularly.