वापस लौटते कर्म /Karma- The Boomerang

What ever we THINK, SPEAK and DO is our KARMA. Every deed comes back just like a boomrang. Every action has equal and opposite reaction - Science principle.
May take few hours, few days, few months or few years or more than one life / birth- whenever the opportunity is there.
Whatever happens to us in our life is certainly deserved by us. We are just not able to identify our Karma responsible for it. 
How we treat others is our Karma and how they react is their Karma. 
How we think about others is also our Karma , so we should think before we think. 
How we respond to others words and actions is also our Karma, so we should respond in a best possible way irrespective of the others' actions or words. 
Note- Pic has been taken from some one else.