Rude people in the outdoors. Choosing the right places to go helps a lot. I now avoid confrontations because people are often armed and crazy.
Kind of reminiscent of how the boundaries of civilization may of very well been perhaps around 1715 or so. Just shy of the eastern slopes of the Appalachians was all but lawless place. Frontier justice. Beyond the eastern slopes a howling wilderness. Back then just as today, crazy people with guns could be a terrible calamity, until the sane people with guns stealthily crept into their camp. It could be deadly, but usually these crazy people were robbed of all their earthly possessions and shooed back east over the mountains.
Of course when camping, especially with our womenfolk and children, rude people make for an unsettling experience. I for one do not care for those who amble right into my camp, without calling in first. Damn bad manners.
Having been a life long camper, I've did my share of campsite reveling. We usually start after returning from fishing or hiking late in the day. Libations, passing the pipe, supper, more quaffing, sometimes music, most always gambling, a bit of ribaldry, story telling, laughter and perhaps howling at the moon or the stars if there were no moon to be had, but always respected the quite time in all of the state or national camping areas we visit.
Camp the way you want, but don't infringe on others doing likewise. S#!t man, a couple of years ago we were camping in Big Meadows and were kept up all the first night by some drunken college kids. The following morning, while they slept off their night of swilling booze, we walked over by their camp and had an extremely long, loud discussion of how those huge meadows were formed ages ago. When they proceeded to disregard quite time the next night, we visited them as crazy people with dogwood walking sticks. Needless to say, they agreed not to be so loud.