It's not always the people with the high credentials that discover everything worth discovering, common folks may also have insightful ideas. When the cat is out, the mice plays on the table . It is too late to fill in the well when the child has drowned. Fixing the problem, after the fact, is busy work. Don't check the mouth of a hose received as a gift .
People buying horses look into the mouth to see how good the teeth are.
Many small creeks make a large river . When the trough is empty, the horses bite each other . With outside pressure, people start turning on each other. To shoot sparrows with cannons . To completely overdo something, like some people spends endless time dressing up an unimportant memo.