The best way to avoid someone or make them go away is by saying the same thing every time they say something. Sometimes they might get annoyed. Other times they might start trying to hit you. If they ask you to fight them,say I don't do that every time they say something. Or you could compliment them which will make them aggravated or throw them off.
You can talk to the person in a way that makes you look like the strong, In the aftermath you should talk to them in a Comforting manner. (Idk if it helps but it worked for me many times)
BMI is a measure which takes into account a person's weight and height to gauge total body fat. BMI is found by taking your weight (in kilograms) and dividing it by your height squared (in centimeters). A person with a BMI of 35 would be classified as obese.