Yes, I'd say this post is a little distrubing..."normal" people don't opt for a shotgun, lest the person they'd like to use it on were brandishing one as well...the salesman, I would gather, likely didnt bring one with him, let alone inside someone's home, if he does keep one in his vehicle. This post sounds along the same lines of someone saying "I didn't like how the girl at McDonald's took my order, because she was a ###, so I pulled out my shotgun at her." I'd say any breakdown in this sale was a comparitive fault...
People don't realize that there are alot of factors in a successful sale: 1.) The buyer must need the product, 2.) The buyer must want to be sold the product, and 3.) The product must be to the standard of the buyer. If any ONE of these points is not a YES, and a sale still takes place, then the fault lies on the buyer. Given that there are no details, one can only assume that the buyer didn't want the product being offered and was offended by being given a sales pitch, and, therefore, the salesperson should not have been invited into the home, even if it was just for the sake of obtaining a free gift card.
At any rate, this post isn't even credible, given it's outlandish nature...the complaint doesn't even say what reasons were given, besides the salesperson was an "###, " and the point of someone wanting to pull out a shotgun, and then goes on to say that he now keeps it loaded, as if the salesman were going to be creeping around his home in hopes he will change his mind and make the purchase.