In the mid 60s dupont installed new carpet samples in the library.
The engineers watched the 4 inch static electricity arcs from newhire hands to the metal door rails
Usually they used the glass after that
LOL I bet that was a sight!
In the 70s I was a field tech in the Wall St. area and was constantly in and out of different offices. I learned early on how to protect myself from shocks when grabbing doorknobs after walking across carpet. You would just graze the back of your knuckles along the painted metal door frame first. Evidently it allowed a slow enough bleed-off of the charge to not be felt.