The glass is a lot cheaper.
Mods aren’t magically summoned by writing the word “mods”.
You need to write “Mods, Mods, Mods!"
Not sure if this applies but a short in the wiring would do it as well.
My wife had a rear window do that from a short in the defroster wires. Localized expansion and kerplow!
That, and some threads have stayed active for a while after the O.P. writes the not-so-magical words.
Sung to the tune of 
“Girls, girls, girls!” 
Don’t use a glass surfaced scale with shoes or slippers on. Socks or bare feet only. Grit trapped in the soles can scratch the glass and trigger such an event.
Well I gotta say knowledge that it may explode at any time does give one pause about barefooted paws on there …
Better to not check!
True enough. Seems a glass surface is a cost and complexity saving measure. Base with all the electronics, then a clear slab over it. Makes for a nice package. But fragile.
Well, one was apparently magically summoned previously without my requesting anything.
And on eBay and such you can buy used Pyrex that was made with borosilicate glass. A huge amount of it was sold, and the used stuff is often very affordable.
They claim regular tempered glass is sturdier. I’m sure the real reason is that it’s cheaper.
We don’t usually close threads just because the question has been answered. But it’s easy to unsubscribe to alerts if you don’t want to follow the thread any longer. There’s a drop-down on the bottom left of the page (on my configuration) that looks like a little bell. Click it and select “normal” if you want it to behave like any thread you haven’t interacted with, or “muted” if you really don’t want to ever hear from it again.
OMG!! It worked!
Tempered glass is strange stuff, you can think of it as having the outside skin shrunk and holding the rest under pressure.
You can hit it on the face of the class with a baseball bat and it will not break, but set it down on an edge and let a small peice of gravel damage the edge and “Poof” it all falls apart into little corn kernal size crumbles.
There’s worse:
A drop being shot at point-blank range by a FMJ .22 Magnum:
Yep. Exactly same thing happened in my friends car driving to school senior year high school. We’re driving up the road and suddenly the rear window just blows into a million pieces for no apparent reason. Gave us quite the jump scare.
The Mods, Mods, Mods! should pin this thread!
Heh, avatar/post combo FTW.
Best not to say Beetlejuice three times though. Who knows what will show up or what havoc they may wreak.