These stories of draft mismanagement resonate through history, and not just in the US. My grandfather came from generations of soldiers and fought in the British Army in the First World War, enlisting aged 18 in 1915 and going into the reserve in 1919. He followed his father into an elite cavalry regiment, the 9th Lancers, but spent most of his three years on the western front as dismounted infantry, and was at the Battles of the Somme, Arras, Cambrai and, worst of all, Passchendaele('The most vile experience a man could possibly have', words from his autobiography). Miraculously he survived, unlike almost all his brothers, cousins and uncles. In 1939, as a youthful 42 year old, my age now!, he tried to enlist again but was turned down because only younger men were being taken at that point. Two years later he had the humiliating experience of being visited by the police wondering why he hadn't registered for conscription, the day after his house in Birmingham had been flattened by German bombing, my baby mother miraculously surviving under a mattress in the cellar (he'd spend the night before putting out incendiary bombs on his street). So much for the 'Blitz spirit.'
My other grandfather was a career Merchant Navy officer and was 'white-feathered' by a group of women on a train because he was of draft age but wearing civvies (MN officers traditionally changed from their uniforms when they went ashore). This was 1941, and he was travelling from Liverpool on leave after having survived one of the worst Atlantic convoys of the war, the only one ever to be turned back by weather and U-boats out of Halifax. His shipping line lost half their ships and a third of their men during the war, and the British MN as a whole had a far higher casualty rate than any of the armed services (over 30,000 killed out of about 100,000 serving). After that he always wore his uniform on leave. He survived too.
This is a bit long-winded and a long way off topic from The Patriot and muzzleloading but I guess goes to show that these kind of experiences are common fare (The Patriot is a pretty good stimulus for thinking how war isn't black and white, anyway!). But at least my grandfathers were in wars which had popular support, and I can't imagine what this was like for returning Vietnam veterans - not only bureaucracy but also hostility. It looks like a whole new generation are now going to have to go through this coming back from Iraq.