> That's like asking, "Why do I need to put my valuables in a safe if I have a lock on my front door?" Not the GP, but I've experienced similar things during m

> That's like asking, "Why do I need to put my valuables in a safe if I have a lock on my front door?" Not the GP, but I've experienced similar things during my career, and these sorts of analogies tend to work really well when explaining technical points to non-technical (and, sadly, even "technical") people.