> Though you could make a similar argument for domesticated animals like dogs. Especially larger dogs. Or humans! There are a lot of things that can be dangerous to humans, especially children, when they fly off the handle.

Dogs, regardless of size are safe to coexist with humans provided they are treated appropriately from a sustenance and behavior/training perspective. That's the result of traits associated with being an animal living in a pack social structure, along with thousands of years of breeding. When dog behavior crosses a line, the dog is euthanized.

> You wouldn't lock up a human either for having the capacity to harm someone else.

We do. When humans demonstrate a lack of control that puts others at risk, we apply progressive discipline to discourage future misbehavior. Fines, probation in various flavors, jail, and finally prison. If you steal a phone from an unlocked car, it's usually misdemeanor theft, if you break down my door to steal a phone, it's a felony burglary.

> So if you end up with an orphaned gorilla in your care, morally you are between a rock and a hard place.

It is really a ranking of priorities. I'm not an ethicist, but generally speaking, the preservation of human life is usually a primary moral imperative.