It is kind of like the opposite of your claim, kind of like a counterclaim. Maybe what someone would argue with you claim with. If I said "Cookies are the best dessert because they are sweet", that would be the claim. The rebuttal would be "No it is not, cake is the best because it has frosting".
One reason why Johnny wasn't scared because he was focussed on saving the kids. Second because he thinks he's the one that started the fire and feels bad about it.
