Cave In.

This is the moment that sucks the most. Of all the little jagged edges of shattered glass, those first ones, when you aren't expecting it, when you don't see it coming, those have the worst sting.

It's like just up to that moment that it gives in, falls down, you can still believe it will hold up. Can still think it won't cave. You can cling to that hope until you are crushed under the ceiling. Keep looking upward, right until it crushes you.