"How can you tell a Viet Cong from a patriotic South Vietnamese?"
the nervous private asked the seasoned sergeant.
"Simple," the sergeant drawled. "You just holler, `To hell with
Ho Chi Minh!' and see how he reacts."
A few days later, while visiting the company hospital, the sergeant saw the
private lying in a bed, badly battered. "What happened to you?" the
sergeant asked. "Didn't you remember to do what I told you?"
"Sure I did," the private answered weakly. "I saw this guy coming
out of the brush and I yelled, "To Hell with Ho Chi Minh!"
"And What happened?"
"He yelled back, `To hell with L.B.J.!'--and while we were standing in
the middle of the clearing shaking hands, a tank ran over us!"