We all had our experiences. Mine, for the most part, were great. Oh yeah, you had the occasional run-in with the local rednecks or cops, but it paled in comparison with all the fun that was had.
Only real bad experience I personally knew of happened to a friend of mine, Darrel. He was at the local ice cream shop when three soldiers on their way to the jungle decided killing a hippie might just be entertaining. The three brave souls beat him unconscious and proceeded to kick him in the head until they tired of the game.
Long story short, he came out of the hospital months later a changed man. The straight A high school student had the mental function of a three year old. He never held a job. He died at 38 in a bar parking lot from a ruptured liver caused by severe alcoholism.
One consolation. Darrel's mother kept track of the three soldiers names. Karma is real. All three names are on a long black wall.