Look up "Griffith crack length". That'll explain it. Basically, a crack can slowly creep and get longer over an indefinite period, but once it reches a critical length, it sprints all the way to breaking point.
Is that a Griffith crack or a Griffin crack? The loud bang was probably caused by too much 'loud' in the closet.
Years ago, some professor was talking about implant access to mega-computers, and he asked, "What would happen if we had the equivalent of 100 years of thought in every decision we make?"
I replied, "No more Hawaiian shirts?" And yes, I was wearing one at the time.
Nice thought -- but I really do need to get rid of the ones that don't fit (which is 90% these days) -- rather than them sitting in my closet, someone else could be enjoying them (there are some really nice ones)