Cat owners are generally charitable toward all cats, but there are situations where this can lead to trouble. One situation that is potentially dangerous to humans is a cat who appears to be choking. It could be choking on a bone or other object, but choking can also be a symptom of rabies, and touching a cat with rabies is asking for trouble. If you don’t know the cat, then you don’t know if it’s been vaccinated for rabies. Your best bet is to call an animal control center quickly.