Tempered glass can break out of nowhere from small flaws. My shower door exploded in the same way when it got really cold. It's always surprising when something like that happens without warning.

Totally get this. It is crazy what one little fix can do for an old setup. Like you stop fighting the gear and it just starts working right. That feeling when the suction grabs hold and you know you nailed the tweak. Why pay for new when you can make the old stuff work better, you know?

My shower door did the same thing last year. It just popped on a really cold night for no reason. Made a loud bang and left a million little pieces in the tray. The installer said a tiny flaw in the edge can cause it.

I once charged for ring resizes until a neighbor baked me cookies.