Sometimes an apology is enough (at least with most matters dealing with material objects) because no matter the excuses, value of broken , goods, or anger you might feel for having things that you worked for be ruined by someone who does not appreciate them as much as you do, what's done is done, broken is broken, and you're brother will be your brother (if anything, you should have anticipated how he is and kept your things 'well hidden'). Still for these types of manners, there's no need for bad blood (unless those objects had sentimental value, I can see how it might be difficult to simply forgive and forget).
On other matters that deal with more emotionally or humanly engaging, however, a simple sorry may not suffice. In this case, you should either deal with it at the moment and move on, or agree to open a dialogue in hopes that you can sort it out, or at the very least leave the situation in a civilized manner.
