I read this week about a couple that traveled to London and while on their trip they learned that some of the bombs dropped on England during the war were still killing people. They turn up and sometimes explode at construction sites, in fishing nets, or on beaches. From my understanding, undetected bombs become more dangerous with time because corrosion can expose the detonator.
He made the comparison of how we so often bury our anger and how it surfaces years later and causes an explosion. If you have some unresolved anger, you may want to deal with it before you blow your nose off. Just a thought.