In a first, an American woman used a suicide pod to take her own life. The process took place in Switzerland. It’s done by pumping in only nitrogen gas, so the person will lose goes dizzy, loses consciousness and eventually dies. Enter futurama memes.
It makes sense and is more convenient, yes, but they were saying that it’s more humane to do the physical instead.
If you had the time and patience to do a tiny bolt gun to the brain of all 50 rats individually it would probably be more humane. But it’s inconvenient and difficult.