I was drafted in 1965, spent six months in the 5th Inf Div in Colorado and then on to Vietnam for a year (66-67). Basic training was at Ft Ord Calif with good Infantry Cadre. I never once heard of anyone or any group of soldiers taking their weapons apart and dumping the parts into a pile and then putting them back together. That may have occurred in some NG unit where a bunch of civilians got dressed up and played Army for 6 weeks every year, but in the real Army I never saw anything like that.