Weeeeeeell... This is a stumper... How bout whatever they say, keep with me. You could just say thanks for making me feel bad about myself! And then walk away a find a teacher or some staff member, and tell them.
Hey I also get bullied just like my bro he took action he got punishment that's why I don't take action and I've been practicing my fighting skills but I always get in trouble at school for trying some action.... So yea but keep STRONG you need to stay strong like I do