Read the following context and answer the question.
Context: Echo is a handsome 10 year old pure bred Belgian Malinois . Echo is a retired police dog so all of his commands are in German and he is SO obedient . When Randy ( Echo 's first owner ) came to bring Echo to us , he showed us some quick obedience training and he also worked with April .
Question: Why did Echo retire ?
Answer:


He got to be too old .