Ok so have you ever had someone say, "You're so fat" or "Who did your make-up a clown" or even "You'll never make it in life, you'll be a loser for the rest of your life"? Well when someone does that to you what you need to do is just ignore them. I've been through it and all I can tell you to do is just ignore them. If you just ignore them, they will eventually leave you alone. If you react each time they bother you they just get worse. If you want to make it funny, you can act like you can't hear them and say, "What? What was that you said I didn't hear you. Then just keep doing that till they leave you alone.