During my basic training, there was this one recruit who was older than most of us, and when we would do physical training, M&M's would fall out of her pocket. Every day this would happen, until finally the drill instructor demanded to know who had the M&M's, which were considered contraband. No one would say anything and we would have to stay longer at physical training until the recruit confessed. It wasn't funny at the time, but later in the barracks we would all laugh about it.