A woman was beating her son because he did something bad the following dialogue ensued:
SON: Why are you beating me?
MOTHER: I am beating you because I love you.
SON: I wish I was old enough to return the love.
Source: Love is Reciprocal (http://akposjokes.com/joke/love-is-reciprocal)
This kind of son will beat the woman thoroughly when he grows up. The woman has to watch out o