I remember that thread, too.
My dad wasn't spit on (as far as I know, he doesn't talk about things like that too much), but he did tell us he was called 'baby-killer' several times while walking through Chicago's O'Hare Airport after returning from the Marines.
The ironic part was that while he was in the Marines in the late 60's he never went to Viet Nam. He was an MP in Hawaii. Stupid hippies.
Neither was mine. My Dad (Rest in Peace), all 5'8" of him, wasn't too happy with the "attention" he received from the hippies at the airport after returning to Texas from his second tour in Vietnam. Hippies were scattering like chaff from wheat when he decided to, errrr, confront them. I might also add that the old man was the only person I ever knew that could do 10 one arm pull-ups (one arm, second arm hanging at his side), at 38 years old.