I really wish the North American adapter’s direct-to-wall connector (the one that’s not a cable) came in an optional 3-prong configuration. As it is, I have to bring an extra cord around with me any time I bring my laptop somewhere, simply to ensure it’s grounded. (I used to get those shocks from it too, until I did, and I really don’t want to go back to them, let alone know what they’re doing to the electronics.)