That sounds like a very weak plan to me. If someone does not behaves like you expect him to you should tell just that, but adding a label to it(insult) is extr

That sounds like a very weak plan to me. If someone does not behaves like you expect him to you should tell just that, but adding a label to it(insult) is extremely dangerous. The reason is because there is something called the ego, that are the beliefs that someone has about herself. Those beliefs get ingrained by repetition memory like artificial learning. English have a problem in the language not differentiating between being in a temporary state and being forever. In Spanish for example you differentiate between being temporary(estar) and being forever(ser). In other words whether you tell a kid that she is temporary fat(está gorda) or that she is fat forever(es gorda) makes an enormous difference and impression on her mind. If you repeat so much that she is fat(forever) she will start to identify herself as a fat kid forever and whatever she does. This is behind so many problems in adults.