Take the bullets from a gun. Empty the barrel of sweet wine. Pull the plug of the television or better still change the frequency to one without a channel or clear signal. The gun is still a gun even without bullets; the barrel remains a barrel even without wine: bitter or sweet; and the television is on, quite alright, but you and I know that if it continues to show the blank screen (though switched on), it is of no use. That's what I mean.