Mathematics Of Anger

A Mother was trying to teach her son mathematics subtraction by distribution method.

Mother : Son,I have 20 mangoes with me.

I give 10 mangoes to your friend Ramesh, 5 to Sushmitha and another 5 to Dinesh.

Now son, tell me what will come to you?

Son : Mom if you give away all the mangoes to my friends, then only ANGER will come to me, what else?

Ha..ha..ha..