How to avoid pessimistic people

I think in today’s professional world there are many people who always keep complaining this is happening for his/her mistake. If he/she has told me earlier it could be avoided. But now time has come not to grow individually but to grow as team. We must have heard many a times from maestro Sachin Tendulkar phrases like “it was good for the team”, “runs were badly needed for the team” etc. if you keep in mind that I will grow and let others let them down by keeping them in dilemma than he/she would be thinking of short term. Because it is universal truth actions and reactions are equal and opposite. A day will come all the ill-will would have repercussions. I think following are ways through which we generate positive vibes and keep us away from pessimistic people:

1. We should always keep distance from pessimistic people.

2. Avoid and ignore pessimistic people.

3. If people are not able to solve problem than take initiative and do not stop until you reach your objective.

4. If some junior comes to us with problem than first ask them what would you do to solve the problem. It would test problem solving skill.

5. If pessimistic people start scolding unnecessary for the initiative taken by us which is essential for solving the problem (they might scold us at that very moment when initiative is taken or in different situation where we have not done any mistake, than understand downfall has started for pessimistic people)  than just try to explain them and do not listen to their reply.