Before revision: Euthanasia (also known as putting down or putting to sleep) is another method that has been used when dealing with animals who may suffer from terminal illnesses, injuries, or over-population in shelters, although many veterinarians do not consider this to be an ethical use of their resources for young and healthy animals, while others argue that euthanasia is a more humane option than leaving a pet in a cage for very long periods of time.
After revision: and also they maybe pee on the floorEuthanasia (also known as putting down or putting to sleep) is another method that has been used when dealing with animals who may suffer from terminal illnesses, injuries, or over-population in shelters, although many veterinarians do not consider this to be an ethical use of their resources for young and healthy animals, while others argue that euthanasia is a more humane option than leaving a pet in a cage for very long periods of time.