Many horrible, inhumane products were patented in the early late 19th and early 20th centuries to help prevent self-stimulation or "self-abuse" as it was called. Products range from a mini spiked bear-trap for penises to the invention of Graham crackers.
The Jugum Penis was intended to cure "spermatorrhoea," a Victorian-era name for nocturnal emissions. The device was fashioned out of a metal ring, which would fit at the base of the penis and was attached with a clip, which already explains why you never see any paintings of dudes from the Victorian Era with a smile.
The sheath was placed directly over the digit. The device fit so snug that it was then impossible to move off of the member without "great physical pain and possible mutilation." And if you were to even try to remove the device and miraculously (bloodily) succeed, it can't be replaced without the tiny, tiny key.
One must wonder how many trials the Spermatic Truss (patented in 1876) went through before it achieved success - success in this case being enclosing an entire package in a pouch and in the process, stretching it to fit against a person's leg and then binding it between the legs, making any natural attempt at becoming aroused or performing the splits - as most Victorian people did - impossible.
In 1837, a health food advocate preached sermons about the dangers of self-stimulation and soon invented a cracker to help ward off those dangers. If you ate your cracker in the morning, the blandness of the cracker was supposed to lower your lust all day so that you would not have "vital fluid" expending urges.
That man’s name was Sylvester Graham and his cracker, the Graham cracker, is an anti-stimulation practice many of us still use today.