Yesterday, I wore my Vietnam Veterans cap when I went to Wal-Mart. Since I retired, trips to Wally World to look at the 'Wal-Martians' is always good for some comic relief. While standing in line to check out, the guy in front of me, probably in his early thirties, asked, ""Are you a Vietnam Vet?"" ""No,"" I replied. ""Then why are you wearing that cap?"" ""Because I couldn't find the one from the War of 1812."" [I thought this was a snappy retort.] ""The War of 1812, huh?"" the 'Wal-Martian' qu…