Sometime , when we grab something unique, we feel like that we need to hold it tightly, we need to hold it by our hand and teeth, as we wish we would never let it go and see it going to someone else!
However, Be sure if that thing came to you, it means, it will not stay with you forever. On other words, it is life cycle, things and positions come around from one to another.
In brief, Be nice and behave politely to acquire people’s respect. So that people can remember you in good things in your absence.