Boat hulls can gather barnacles if they are not kept clean. Boat owners clean the hulls regularly to make sure that the boat stays streamlined. How often are we felled by an accretion of small things? The proverbial last straw when we finally lose it.
Keeping short accounts is a good thing. Dealing with things as they arise rather than letting them build up is healthy. Don't let the barnacles accrete on your life.