Dogs can be well trained and don't have to be indifferent to food. In fact, dogs are smart because their brains process language like humans. They are very clever and can understand their meaning through human language. Although they can't finish a sentence naturally like humans, as long as the language expressed by humans is clear and accurate, dogs can receive instructions and make accurate actions. For example, if you let it sit, it will sit, if you let it jump, it will jump, and so will the family.
Dogs are sometimes smarter than people, and trained dogs can help their owners. Of course, the dog will definitely want to eat food for the first time, but the owner can tell the dog not to eat it with some actions, because the dog's brain is basically the same as the human brain, and the left brain is responsible for understanding the meaning of language, and the right brain will analyze the tone of the owner. As long as the owner gives it instructions, it can feel it very clearly. Modern single men and women like to keep dogs and cats as companions. Dogs can understand people and are extremely loyal. If you are kind to them, they will be kind to you. They can not only let the owner pat the dog heartily, but also help the owner to do some housework. For example, some dogs will go downstairs to help their owners get meals and express delivery, and some dogs can buy things with money.
Dogs are smart because their brains process language almost in the same way as humans. Just like this dog who helps the owner look after sausages, it not only doesn't eat, but also drives away flies around sausages for its owner, and it is also very conscientious.