Two small boys live with their grandmother, their parents ruled unfit for the job. The same grandmother has an adolescent son stuck somewhere on the functioning end of the autism spectrum.
The older boy will, now and then, harm the younger boys for reasons that are not clear. He’s been lectured, but to no effect. Calling child protective services would likely result in the boys being put into foster homes, since their godmother is unable to take them at this time, and so is a less-than-desirable solution.

What’s the best way to handle this? What ought the godmother to do? And myself? My first instinct is to go over there and chew out the older boy, but I know just enough about autism-spectrum disorders to doubt that it would be effective.