The proverb is used to chide improvident people, that is people who know that challenges will come but fail to prepare to meet them. When a cow knows that it is going to be killed, it does not consider the convenience of others. A person facing defeat can be very callous about his or her treatment of others and is likely to be reckless. There may be one protester or petitioner, but that person may be representing a widely felt need. Dog does not know how the world spins around until he pushes his head in a salmon cup.
New experiences teach new wisdom.
A dog has no sense of circular motion, but if his head gets fastened in a tin, you see him spinning around like a little earth to get his head out of it. E face look like when cow a bus rope. His face looks miserable. He's miserable looking. This is a proverb about goats simply.