Sometimes we say that someone we know is “A square peg in a round hole”. This simply means that the person we are talking about is not suited for the job he is doing. He may be a doctor who really wants to be an singer or a engineer who likes acting. And many peoples are “square pegs” around us. As a result they probably are not doing a very good job and certainly they are not happy. But they are some who happy in this situation.
There is popular saying in the United States and also other countries “All work and no play makes Jack a dull boy”. We cannot work all the time if were are going to maintain good health and enjoy life. But everyone has his own perception. Perhaps the most popular way is we appropriate work hobby.