Passion in Sales- What are the boundaries?

For the past many years, there is a daily ritual I have. Watching a movie or a series episode everyday. I devote 1 to 2 hours almost daily towards this and feels quite therapeutic, relaxing and interestingly enough provides me with some good insights. After all, the cinematographic worlds many times are a reflection of our real worlds. There are certain clips which inspire,motivate or even force you to think about applications in real life. I will be sharing some of those in days to come but this particular one from a movie I recently watched was hilarious and thought provoking at the same time. How much passion in Sales is Good? Are there or should there be any boundaries? What do you think?