Bad situations (such as the one that brother is in) can explain moodiness and maybe sometimes an overall grouchy attitude even, and that's understandable to a certain degree. However, there is no reason to say hurtful things to other people no matter what your situation is (meaning the person saying the hurtful things). We are all human beings and even more importantly, we are all brothers and sisters so its even more important to be loving towards each other. Of course we all understand that we can slip up sometimes and say things that we shouldn't but to be constantly doing it and blaming it on a situation that effects them in a bad way is silly. They know right from wrong and they should know that what they're saying is innappropriate and not use their situation as an excuse to speak their mind freely.