A friend suggested to me that I can invest in the business of his nephew who is a car mechanic. They need to expand their shop and they also need some new equipment. In other words, they need more capital. However, I do not know anything about a car shop even if I have a car. What would happen to my investment after a year and how would I know if the business is earning or not? That may be a very risky proposition that I tend to decline.