>> The designers observed that a few users seemed to stumble at the point that the dialog was displayed, clicking "Cancel" when they should have clicked "Do It"

>> The designers observed that a few users seemed to stumble at the point that the dialog was displayed, clicking "Cancel" when they should have clicked "Do It", but it wasn't clear what they were having trouble with. Let me tell ya... people are still having problems with this. Red/green buttons, "OK" instead of "Do it"... doesn't matter. We're dealing with apes here, people. Goddamn apes.