Sometimes, animals can get themselves into some very dangerous situations. They might get stuck and be unable to get themselves out. You might have come across cases of animals getting in trouble due to things put up by humans, for instance, wild animals getting stuck in barbed wire fences or falling into manmade ditches.
The case shown in the following video is quite similar. This poor dog had fallen into a deep well. Falling into a well is dangerous, even for humans.