Some people like Scorpion

If we keep a scorpion as a pet , take care of it in every way , be friend with him. But at some day he will must sting us. Beacuse stinging its his habit and his nature. 

In the same way , some people are liked that in our lives. Be as good with them as you can . Do good to them. 

But they never stop stinging to you. It is in the nature of such people to be deceived. 

Make relationships and friendships in life by thinking. Beacuse it is very difficult to find true people. It is better for us to be alone with such fake people.