I left Danang in March of '69. Was there for 9 months. Flew with VQ-1 as a member of the Big Look Spooks out of NCS San Miguel, PI and Kamiseya, Japan. Made 67 missions over the North.
I too got spit on when I got off the plane in SFO. I back-handed the little bastard and kept walking. His hippy girl friend was screaming for security to arrest me. The cop just smiled and nodded at me. I kept walking.
I never felt ANY shame. I was from a military family. Father and both brothers were careerists. Mother was a Red Cross nurse at every duty station my father went to. I managed to do 12 years before they medicaled me out for injuries sustained in Nam.
I went on to staff duty in London, Instructor duty in Pensacola and Comm Chief duty in Rota Spain. Finished up- at CINCLANTFLT on limited duty while they were doing my medical boards. The 4 O6 officers on the board looked at me funny. Standing there with E8 stripes, wings and five rows of ribbons. They said I didn't look like a slacker. Told them if their doctors could fix me I'd be in for 30. But they couldn't. They let me out with 30%.
McNamera lost that war. He should have been shot for treason.
Lotsa VN vets on this forum. I salute you all, brothers in arms. Stay proud - and find some peace...