Looking back on my five weeks of basic training at Lackland Air Force Base, I recall the obstacle course. I crossed a stream of water hanging by my crossed legs around the rope and going hand over hand to get across this stream. Well, the tech sergeant took exception to the speed that I was going to get across the span, and began swinging the rope and myself from left to right. Like that was going to make me go faster. I don't recall that I crossed any faster, but I look back on the entire course as just a physical challenge that I was able to endure, now 55 years ago.