To celebrate or not to celebrate ?

It is not the first time that we see a player not celebrating after scoring a goal for a number of reasons. Last Saturday one witnessed a young and promising player such as Acquafresca of Cagliari who did not celebrate his goal against Inter in one of the world's most famous and glorious stadiums not because he previously played with Inter, but because he is co-owned between the two clubs and didn't want to offend his potential future employers. Also a few months ago Amauri did not celebrate his goal against Napoli because they were the team that gave him his debut in Serie A many years ago. On the other hand, Gilardino has stated that he will celebrate if he scores against his former team, Milan and Inzaghi has always celebrated his goals, even those against former teams. One can understand when a couple of years ago, Batistuta did not celebrate his goal and even cried with emotion when he scored against Fiorentina. This because he become a symbol, the captain and had passed through thick and thin for Fiorentina. But instances like of Acquafresca and other players in a similar situtation, I cannot really fathom why they do so. Scoring a goal gives an adrenaline rush and one should fully enjoy the moment and not suppress one's true feelings. One must also not overdo it with celebrating, such as was the case of Shevchenko when he kissed the badge of Chelsea with his first goal for the club in the Charity Shield match against Manchester United, thus obviously irritating Milan fans.