Well - I wouldn't call it dumb stuff. After all, it's only a matter of time one of us does something truly stupid :-) Even more so when under stress and pressure when shit hits the fan, which is usually when human operators have to intervene. It's part of building reliable systems to reduce the chances of operator error. See: the Hawaii missile alert bug! It must be truly terrifying to sit at that particular keyboard typing in any command.
Read "Inviting Disaster" for a lot more about this topic.
Many very high profile disasters were caused by operator error or more precisely complex systems not designed for what you might call failure ergonomics.
