I just got done reading a diary kept by a private in the U.S. Army when he was stationed in upstate New York, 1918-1919. He was assigned to guard inmates at a hospital for the insane operated by the army.
In it, he mentions a peculiar quality of the floors, that they were slippery.
And that they were slippery on purpose.
Guards wore special boots that made the floors non-slippery.
Inmates wore slippers that made them slide and skid if treading too fast.
An interesting idea, and I'm wondering if such is still done today. Not being intimately--or even distantly--acquainted with nuthouses, I myself wouldn't know.