> You are never asked to enter a password, or type in "Remove Everything" as a fail-safe.
Some people will still do that and be surprised at the result.
My dad once reformatted his memory card on his camera, losing all his pictures from his vacation. He wanted to 'Change the Format' of the image (why? who knows), but instead he reformatted the card. "Are you Sure? Yes!"
I once copied an empty partition over a full partition instead of vice versa. I knew I only had one copy of this important data, and was trying to back it up. Are you sure? double-check.. YUP!