Is there anyway to disable that? I sometimes forgotten to unplug the device before closing the lid. Such as when I'm in a hurry and close the lid of the MBP, only then realize that my iPhone is still attached. I don't want to put unnecessary stress on the harddrive by it going to sleep, waking up, then sleep again just because that unplugging an USB device woke it up. I notice that this does not happend on my Windows laptop.