More than likely the dog is ill , or has swallowed something blocking the digestive tract, take it to a veterinarian as soon as possible.
You should pick up the other dog poo so the other dog can stop eating it
Hunger
Yes, an ear infection can stop a dog from eating. The discomfort and pain associated with the infection may cause a loss of appetite, as dogs often feel unwell and less inclined to eat when they're in pain. Additionally, if the infection affects their balance or causes nausea, this can further deter them from eating. If you suspect your dog has an ear infection and is not eating, it's important to consult a veterinarian for proper diagnosis and treatment.
Keep the diapers in a location that the dog can't get at.
tell it to stop it and wack it
Feed it.
Definitely take it to the vet. The cigarettes could kill the dog.
The show Dog Whisperer had an episode about a dog who had an obsession with eating rocks. That will give you an idea of what to do.
kill it.
Go to pet store or tractor supply.They have pills out to stop your pet from doing this.
There are several reasons why a dog may stop eating, including illness, dental problems, stress, changes in routine, or food aversion. It is important to consult a veterinarian if a dog stops eating to determine the underlying cause and provide appropriate treatment.
try too pull