i totally agree with lenny because i seen my friend do that before. but if you want to actually want people to stay away from you i would stsrt out by uper cutting the other kid in the nose. that would knock them to the groun and stomp them in the face and stomach. remember the bigger they are the more harder they will fall

First of all if you are fighting a fat kid that is taller than you punch him in the gut, so he bends over then knee him in his face. after that blow he would be knocked off guard then throw him to the ground and start punching his nose into his face then go for thier eyes and mouth