How did the “workers carry glass pane across street, someone smashes through it” thing seen in movies come about?

Question

How did the “workers carry glass pane across street, someone smashes through it” thing seen in movies come about?

In: Other

Answer 1

You can make a fake glass known as sugar glass. Its cheap, easy and shatters just like real glass.
[https://en.wikipedia.org/wiki/Sugar_glass](https://en.wikipedia.org/wiki/Sugar_glass)
Cue a recipe for a cheap, safe and very dramatic stunt.

As to why it was often done in the two workers setup? Well I can only speculate on that. But it did provide two people to respond to the calamity, without needing to do a jarring cut to whoever would be upset by the broken glass.