On several occasions i wonder why some parents encourage their children to be revengeful. For instance you will hear a mother telling the child " if he knack you , blow am back you no get hand?.
Is this really good?

I wont lie i've done it in some certain occasions. Nobody wants a weak child, at times, the need to learn how to fight back, that is my opinion though.

That is no revenge and sometimes, it's a way to make the child strong so that he wouldn't be bullied around.

Dat one na revenge?!
Its simply teachin d kid self-defence against bullies and other vices.....or do you want a child dat will come crying to you everytime something happens? Abegi.....my mama teach....me sef dey teach people.