Nonsense is somewhat like randomness, in that it's very hard for a human to create perfect nonsense without inadvertently injecting little bits of sense. Once in a great while, however, a carefully crafted instance of utter nonsense reaches such levels of quality that special recognition is merited:
"Warning! The GoBack Auto-Revert buffer is now 50% full. Once this reaches 100%, the computer will automatically revert to the Auto-Revert time."