Did they have a SID at your boot camp? At RTC Great Lakes in the late 1960s, they sent the screw-ups and trouble-makers to the Special Indoctrination Detachment. We heard horror stories about SID. The only time we ever saw them was at chow; they had a special table on the mess deck. They had to sit at attention and eat by the numbers while a petty officer called cadence. Those guys always looked scared to death, and I have no idea what their "special" training consisted of. I just knew I didn't want any part of it!