Jo's right here. Don't let your W's negativity suck you in. This is where the Martian leadership qualities can really serve you well. If you see that W is being negative, put on your leadership hat, be positive, even if you have to "act as if".
Now then, I am so sorry to hear about what happened to your S5 at school and I hope the administration gets it resolved NOW! I'm going to take an educated guess here that perhaps the boy who is acting out inappropriately is probably being sexually abused. That is just so sad.