Yeah, you have a point. I've known people that type and execute potentially dangerous stuff without re-reading it or understanding what the command is supposed

Yeah, you have a point. I've known people that type and execute potentially dangerous stuff without re-reading it or understanding what the command is supposed to do. I just read and make sure of what I'm about to execute when I'm working with potentially dangerous commands. I can't remember a time where I've done something as disastrous as your example. Then again, the same is possible with GUIs. People can select stuff without meaning to and deleting them without making sure of what they're doing.