Side note, high pressure injection was and still is a common workplace accident[1]. It happens when you work with highly pressurized fluids, like with a grease

Side note, high pressure injection was and still is a common workplace accident[1]. It happens when you work with highly pressurized fluids, like with a grease gun, and there is a leak. The high pressure jet can penetrate your body without too much visible damage, but you just injected yourself with nasty chemicals, and the consequence can be serious, or even fatal. The jet injector idea was that if high pressure jets can inject people with poison, why not use the same principle to inject medicine. [1] https://en.wikipedia.org/wiki/High_pressure_injection_injury https://en.wikipedia.org/wiki/High_pressure_injection_injury