I, too, would be one to offer someone help in backing in, or whatever the situation might be to make camping life easier. Apparently, these 2 couples ( probably the men ) felt that their "camping pride of knowledge" was being stepped on when another volunteered their assistance.
In the case, as it was, I would have sat back and enjoyed the entertainment too. I'm always open to a good head-shaker.
As to the people and their sewage hose phobias. I can only say that my growing up and tending to the chicken house, horse stalls, and other enjoyable chores around the farm....oops, not to forget the outhouse, soap does wonders on your hands afterwards. I just get a chuckle out of some the responses here.