Just kidding?!

Some people say something which could hurt somebody!
They wanted to convey something, which might not be very desirable and once they deliver those words to the other party - they realize that the other party is hurt.

Once they realize, they back off saying - "I was just kidding". That is not fair.

We should have realized that before delivering those hurting words.

Do not hurt others, when you know that they won't like it!!