Well, it depends on the situation. I have a friend that is a Software Engineer and he loves programming, and one day he told me "Daniel, I want to do some computer programs and maybe I think I can sell them" then I told him "Please do your best effort". So, one day he came to my house and he was really happy than on other days, of course, I asked you "Why do you have that big smile?" then he answered, "Daniel I already quit my current job and that's the reason why I am very happy". He's currently working as a freelance and he has made some computer programs (he has sold a lot of them). Last but not least, he has worked as an account manager as well.