In one case, I sold a car and the buyer wanted to pay only part of the price at first. I was young and trusting so I agreed. He never paid it. Yes, I thought I

In one case, I sold a car and the buyer wanted to pay only part of the price at first. I was young and trusting so I agreed. He never paid it. Yes, I thought I was helping him because he wanted a car and was short of money, but no, I wasn't expecting to give him free money. Now I know better, I wouldn't do that, but it's usually naive people who get ripped off. If everyone had a good clear understanding of every situation involving money, nobody would get ripped off.